Goodreads helps you keep track of books you want to read.
Start by marking “Killbox (Sirantha Jax, #4)” as Want to Read:
Killbox (Sirantha Jax, #4)
Enlarge cover
Rate this book
Clear rating
Open Preview


(Sirantha Jax #4)

4.07  ·  Rating details ·  4,197 ratings  ·  331 reviews
Talk is cheap when lives are in jeopardy

Sirantha Jax is a “Jumper,” a woman who possesses the unique genetic makeup needed to navigate faster than light ships through grimspace. With no tolerance for political diplomacy, she quits her ambassador post so she can get back to saving the universe the way she does best—by mouthing off and kicking butt.

And her tactics are needed
Mass Market Paperback, 353 pages
Published August 31st 2010 by Ace (first published July 29th 2010)
More Details... Edit Details

Friend Reviews

To see what your friends thought of this book, please sign up.

Reader Q&A

To ask other readers questions about Killbox, please sign up.

Be the first to ask a question about Killbox

Community Reviews

Showing 1-30
Average rating 4.07  · 
Rating details
 ·  4,197 ratings  ·  331 reviews

More filters
Sort order
Start your review of Killbox (Sirantha Jax, #4)
✘✘ Sarah ✘✘ (former Nefarious Breeder of Murderous Crustaceans)
BR with my fellow junkies Shelly & Jaime. Because we're Jax addicts. There's no hope for us at this point.

On and on and on it goes. BAM! 5 stars again. Yep, you got that right. Four books. Four 5-star ratings in a row. English-speaking pigs are now flying. So are Spanish donkeys. And French hens now have teeth. This is the stuff of legend.

(view spoiler)
God. God. I just finished, and... I don't even know where to begin. How do I rate this book?

This book left me smoking pissed. Part of me wants to give it a bad rating because of that, just out of spite. But when I think about it, this visceral emotional reaction I am having, it is a reaction to the story. To a well-told story. How can I give that a low rating?

There are a lot of decisions that frustrated me in this book. I honestly found it hard to read, because parts of it were pretty upsetting.
Maja (The Nocturnal Library)

Killbox would have been a beautiful 5-star book, but the cliffhanger-ish ending ruined it a bit for me. Still, I can honestly say that Ann Aguirre hasn't failed me yet. I postponed reading this book for as long as I could, trying to get closer to the release date of Aftermath. Today I needed an author I could trust and and a world I felt comfortable in.

This is one of my favorite series in the world. What I love most about it is the growth of the characters: not just Jax and March, but Dina and H
Mar 15, 2015 rated it really liked it
Shelves: read-2015
No updates + no review (yet) = No spoilers. Cos, I'm a nice guy.

That ending though...
Diplomacy has never been Jax's biggest strength so she's relieved to have resigned from her role as Ambassador and trying to figure out what to do with her life next. Then March gets an offer from the Conglomerate that he can't refuse, they want him to recruit a military fleet for them and marshal their forces against the human-eating Morgut who are currently plaguing the most vulnerable human outposts in the far reaches of space. Jax jumps at the chance of being in the action again and is more ...more
Sԋҽʅʅყ ƚԋҽ Wҽιɾԃ αɳԃ Wαɳԃҽɾιɳɠ Wαɾɾισɾ

This is book 4 in the Sirantha Jax series. In this one, the Conglomerate has formed an Armada with our hero March as its Commander. The Armada is a militia made up of ex-raiders and criminals who have pledged to turn a new leaf with a promise of clemency and profit in getting to claim what they find on Syndicate ships who attack small unarmed colonies. Also, the war with the spider-monster Morguts
The good stuff:

The plot of this book is back on track after the diplomatic detour of the last book. There's action galore; Jax is back in her element aboard ships and in the thick of galactic drama. Also, the Morguts are terrific bad guys. They're not only very scary by design, but also because of Aguirre's skilled writing in confrontation scenes. She makes them into a truly frightening foe, which heightens the drama considerably.

The supporting characters are very well done. Aguirre is fantastic
Sep 06, 2010 rated it it was amazing
Shelves: sci-fi, vaginal-sf
This is the only series that reddeems the "sci-fi" romance genre, probably because it's NOT a sci-fi romance novel, it's a sci-fi series with a strong romance arc, and so readable by boys and girls.

I inhaled this latest in the series because it was SO GOOD! Wow, what character arcs for the two lead characters, I feel like they really have matured together and become different people from book one. They have GROWN, it's so believable and so gratifying to see a relationship and where it goes AFTER
Cheryl La Pa
Apr 19, 2017 rated it it was amazing
Shelves: 2017-apr
Magnificent! Adrenaline-pumping & heart-breaking! And what an ending! I'm still reeling from it!

This is the fourth book in the series and it is definitely one of the best so far.

Jax and March are enlisted to gather a force to defend the planets from the Morguts – a flesh eating race of aliens. March is now the Commander with Jax as his subordinate: this creates difficulties for Jax as March is now both her lover and her boss.

The other members of the close-knit crew are separated from March & J
May 22, 2011 rated it it was amazing
Recommends it for: Sci-Fi Romance fans
"I am Ramona Jax," she tells the universe.
"And I do this because this is my world."

Ann Aguirre has fraggin done it again!!!! I'm amazed at this romantic Sci-Fi fantasy world she has created. Killbox is a book about War, Love, Loss, Sacrifice, and being Heroic at the risk of losing everything.

Chancellor Tarn has put March in a position to build Starships offering protection to tier worlds as the Morgut threaten to take over. War has begun. Jax, March, Vel, Dina, Doc, Hit, are now aiding Tar
Jun 13, 2012 rated it it was ok  ·  review of another edition

Man oh man, did this book ever annoy the crap out of me.

While I still enjoy the series, this book has my fangirl status on hiatus. Much the same way that March places his love life at every possible turn.

So this story revolves around the growing Morgut threat, and how Jax, March, and everyone else (plus some random new guy who I can't figure out but seems to be all powerful) set out to fight them. The alliance with Ithiss-Tor is a go, and the Conglomerate is trying to make a comeback after bein
Jen Davis
Oct 13, 2015 rated it it was amazing
When I reach the end of this series, I anticipate a period of mourning coming on. I don’t see how it can be avoided, because I am in deep. These characters have me in their grip. I feel like I know them. I laugh with them. I cry with them. I worry and anguish and exalt in time with their tragedies and triumphs. And then I say very bad words when I am left with their fates hanging in the balance.

This story begins with Jax and her crew headed home from their successful mission at Ithiss-Tor. But t
Oct 16, 2010 rated it it was amazing
4.75 stars. This is one of my favorite in the series, although warning -- it ends with a cliffhanger. I enjoyed this installment of the Sirantha Jax series. Jax's friendship deepens with everyone around her, including Vel and Dina. Jax continues to grow as a character and as a result, makes decisions that place her at bodily risk. Jax still bears the tatoo Vel gave her on his planet but the meanings of the markings is vague -- although March wishes the tatoo was not there. Old friends are back i ...more
Anzu The Great Destroyer
*hums to herself*

"This is war
And it’s on tonight
So get up and fight
Get up and fight
You had all your life
To run and hide
Now step up, now step up
Let’s do this"

So here comes war. Everything is dark, no planet is safe anymore, people are dying all over the place and March is hot as hell. You would think this as an awesome book. I know I did *winks* And it was (kinda) at least for some parts.

See the beginning was ok but I wasn’t impressed. A bit too boring for a good Sirantha Jax book. But t
4.5 Stars. My favorite one yet. I'll get to the loss of a 1/2 star at the end.

The writing was superb, with little repetition that plagued the previous books in this series, nearly poetic in many places.

Jax has become the heroine that I've been yearning for. She's strong and independent, and still beautifully connected to those she loves and cares about.

In the end this series is all about the relationships for me, all the connections between the characters, and the depth of emotions that it pulls
Pamela / SpazP
Sep 13, 2010 rated it it was amazing
Shelves: favorites
Originally posted at WickedLilPixie Reviews

One of the reasons that I prefer Urban Fantasy, and now Science Fiction Romance, series to stand-alone novels is because if they are done correctly, you get to experience and enjoy the growth of the heroine throughout the duration of the novels. The Sirantha Jax series is a spectacular example of this! It has become one of my most favorite series to look forward to.

Killbox is the fourth book in the “Jax” series and boy, did this book deliver. We find ou
Killbox , the 4th in Ann Aguirre's Sirantha Jax series, was one of my favorites of the series. One downside ... the wait until September for Aftermath #5 following a cliffhanger. I knew and still I read it, so I only have myself to blame. ;)

This edition finds Sirantha and her merry band of space warriors dealing with slavers, pirates and the continued battle between the Syndicate and the Conglomerate post-Farwan collapse.

Sirantha also finds herself dealing with the fact that she's slowly, bu
Lolly's Library
Why, oh, why can't we give books 10 stars? If it were at all possible, I would. I would give this book one hundred stars. I finished this today and already I'm in withdrawal. I didn't want to stop. I tried, I tried very hard, to read Killbox as slowly as possible, to savor the story. But like any attempts of mine to savor a rich piece of chocolate, to let it melt on my tongue and slowly infuse my senses with its deliciousness, I failed miserably. From the first page, I got so caught up in the st ...more
And this is the reason I wait for an entire series to be released before I embark on it. You never know when an author is going to leave you hanging at the end. What a cliffhanger! I am so, so glad the next book is already out.

This installment takes a while to get warmed up, but once it gets going, all hell breaks loose. It's war now, and the scale is exploding. I've gone from learning to care about a small crew of a rogue ship to fearing for their lives as the fate of all known races takes pri
The Flooze
Feb 01, 2010 rated it really liked it
Ann Aguirre knows how to carry her readers on a roller-coaster ride of emotion. Throughout Killbox, I was tensing up, holding my breath, crying…needless to say, the story gets intense.

In the wake of Farwan’s collapse, humanity is fighting to survive against several threats: raiders, slavers, and Syndicate heavies are all taking advantage of the Conglomerate’s lack of defensive forces. However, nothing can beat the terror the man-eating Morgut horde inspires. The alien race further encroaches up
Nov 26, 2010 rated it it was amazing
Synopsis: Sirantha Jax is a “Jumper,” someone who possesses the unique genetic makeup needed to navigate faster than light ships through grimspace. With no tolerance for political diplomacy, she quits her ambassador post almost immediately after leaving Vel's home world so she can get back to doing what she's knows best; being a navagator.

Her abilites are needed more than ever. Morgut (Flesh-eating aliens) are attacking stations on the outskirts of space at an alarming pace, and for many people,
May 18, 2011 rated it really liked it
Recommends it for: sci fi - fans, UF fans, fans of very well-written books
Wow. This get 4.5 stars from me. There is a nasty cliff hanger, but fortunately, I have Aftermath already to go!

Everyone talks about this book as the "War" book in the Grimspace series. Make no mistake, this is full of war, but I think of this one as the "sacrifice" book. This book is full of nothing but sacrifice, from smaller sacrifices, to the greatest sacrifice a person can make.

After Doubleblind, we learned the a war with the Morgut was brewing. Jax quits her job as ambassador to Ithiss-To
Mandi Schreiner
Aug 10, 2010 rated it it was amazing
Favorite Quote: March kisses me with a delicacy and heat that work their way into my nervous system. His hair spills against my cheeks, too soft for such a hard man. If he knew how rakish it makes him look, I’m sure he would shave it off.

I forget between the many months that pass between Sirantha Jax books how much I absolutely love them. Ann Aguirre blows me away in each book, and Killbox may be her best yet.

War is coming. The Morguts, flesh eating monsters, that have a 97% kill rate against –
Sep 02, 2011 rated it it was amazing
Shelves: 5-stars
Re-read 13th January 2017

Read 2nd September 2011
I’m Sirantha Jax, and I have had enough.

OMG! The so painful. This is the best in the series so far and most definitely the most emotional, I cried a few times throughout the book and some very hard decisions are made.

This book focuses on the recruitment side of war, March is offered the role of Commander, which has it pros and cons. It's a huge responsibility but there's no one else for the position, we get to see old characters fr
Carolyn F.
Jan 27, 2011 rated it really liked it
Shelves: sci-fi, sfr
Why or why can't Sirantha and March ever just be together and somewhat happy? This book comes up with another reason why they have to cool their jets. They're officially at war with the flesh-eating spider people (I forget their name) and March is the commander. As the commander, he cannot have sex or even show that he's with Sirantha because that's bad for morale. Screw morale! They need to just do what's good for them. Even with all my complaining, I still loved the book and have preordered th ...more
Ivie dan Glokta
As an author Ann Aguirre is as brilliant as she is unique. I can't say that up to so far have met a character like Sirantha Jax or a good series like this. It's very, very, very hard to find stuff that is similar and equally good.

The only thing i would touch up in the way Aguirre writes are the sex scenes. They are generally bland, and leave everything to be desired. Lucky for us there is plenty of other good stuff to focus on.

Jul 14, 2018 rated it liked it
Shelves: scifi
Better than the last one but not all that great. I really don't like ….we're going in. Two hours later we lost the 2nd deck.... Uh what happened in between? I bought the next 4 books in the series after being blown away with the 1st book. Big mistake, no book has lived up to the first or even come close. Lesson learned, maybe. Three Stars
Oct 03, 2010 rated it it was amazing
Genre: Space Opera

I adored this novel! It’s the fourth in the Sirantha Jax series; the backdrop is sweepingly epic “save the universe” from the Morgut invasion, which is biding fair to obliterate humanity. Despite the epic backdrop the emotional stories are very real. In many ways this book was sad (although it wasn’t depressing, oddly enough) – I really appreciate how Ann Aguirre continues Jax and March’s love story beyond the initial “I love you”. It’s complicated. It’s adult – they love each
Rhiannon Frater
Oct 25, 2010 rated it it was amazing
Shelves: favorites
This review has been hidden because it contains spoilers. To view it, click here.
Annie (Under the Covers Book Blog)
Posted on Under the Covers

Ann Aguirre possesses the unique ability to tug on your heartstrings and then wrench your heart out. That’s how I felt when I read KILLBOX. There’s just this wide range of emotions that overcome me whenever I read a Sirantha Jax novel and sometimes, it’s hard to get through because I’ve become too invested in these characters.

KILLBOX has to be one of my favorites of the series because readers see Jax as she’s supposed to be. No longer the ambassador for the Conglomerate
« previous 1 3 4 5 6 7 8 9 10 11 next »
There are no discussion topics on this book yet. Be the first to start one »

Readers also enjoyed

  • Age of Deception (The Firebird Chronicles, #2)
  • Song of Scarabaeus (Scarabaeus #1)
  • Dark Minds (Class 5, #3)
  • Heaven's Queen  (Paradox #3)
  • Gabriel's Ghost (Dock Five Universe, #1)
  • Dark Horse (Class 5, #1)
  • Honor's Knight (Paradox, #2)
  • Finders Keepers
  • Rules of Redemption (The Firebird Chronicles, #1)
  • Dark Deeds (Class 5, #2)
  • Secrets Bound By Sand (Dragon Ridden Chronicles, #4)
  • Fortune's Pawn (Paradox #1)
  • Dark Matters (Class 5, #4)
  • Shades of Dark (Dock Five Universe, #2)
  • Chaos Reigning (Consortium Rebellion, #3)
  • Destruction's Ascent (Dragon Ridden Chronicles, #3)
  • Wayfarer's Keep (The Broken Lands, #3)
  • Of Bone and Ruin (Dragon Ridden Chronicles, #2)
See similar books…
Ann Aguirre is a New York Times & USA Today bestselling author with a degree in English Literature; before she began writing full time, she was a clown, a clerk, a voice actress, and a savior of stray kittens, not necessarily in that order. She grew up in a yellow house across from a cornfield, but now she lives in sunny Mexico with her husband, children, and various pets. She likes all kinds of b ...more

Other books in the series

Sirantha Jax (6 books)
  • Grimspace (Sirantha Jax, #1)
  • Wanderlust (Sirantha Jax, #2)
  • Doubleblind (Sirantha Jax, #3)
  • Aftermath (Sirantha Jax, #5)
  • Endgame (Sirantha Jax, #6)

Related Articles

Fresh off the success of her World Fantasy Award–winning novel Witchmark comes a standalone romantic fantasy from author C.L. Polk. In The...
35 likes · 2 comments
“Men always want to be remembered whereas women realize that requires being dead.” 46 likes
“Now I know there are ways to belong to someone that don’t take anything away. A relationship shouldn’t impose limits—and if it does, then it’s wrong. A lover should help you exceed your potential, not clip your wings.” 31 likes
More quotes…