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(International Sensory Assassin Network #2)

4.66  ·  Rating details ·  117 ratings  ·  65 reviews

Alliances are forming. The resistance is growing. Everything is about to change.

With her memory still fragmented, Ava returns to the International Sensory Assassin Network (ISAN) to find the twin sister she never knew she had.

But as Ava hunts for information, she finds herself tangled in a web of yet more lies and conspiracy. The Helix serum may not be required to acce

Paperback, 376 pages
Published September 10th 2019 by Vesuvian Books
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Average rating 4.66  · 
Rating details
 ·  117 ratings  ·  65 reviews

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Bex (Beckie Bookworm)

So this is the second book in the series and this starts where the last left off with Ava exchanging herself for Ollie and back within the walls of ISAN.
One of the first things that struck me here was we get to experience the story this time from both Ava and Rhetts POV which I much prefered.
I was able to get much more of an idea of Rhett's character and it was apparent instantly just how much he cares about Ava and how her decision to return and place herself in danger is affecting him.
I was a
Jen ♥Star-Crossed Book Blog♥
Helix was an action packed ride that had me on the edge of my seat. The story was rich and intricate, the characters had my emotions pulled every which way and I loved how the stakes were even higher! This book was just as addicting as the first, and I loved being back in this world. If you love dystopian and books that play out like a movie, then you have to pick up this series!
I wasn’t just a daughter whose father had experimented on her. I was the very thing ISAN should fear.

✮ A D
Sep 01, 2019 rated it really liked it
*Source* Xpresso Tours
*Genre* Young Adult, Dystopian
*Rating* 3.5


Helix, by author Mary Ting, is the second installment in the authors International Sensory Assassin Network series. ISAN introduced readers to a world that was destroyed by meteors. 50 years of radiation and turmoil followed. The former US is now run by a so-called Remnant Council broken up into 4 regions. Scientists discovered a unique compound from the meteors that advanced technology 100x what they would have had before
Gracie Bustillos
May 17, 2019 rated it it was amazing
I loved this book. I didn't want to put it down. I also didn't want to finish it because I knew I'd have to wait for the next book. This book is a must read.
Excellent writing Mary. I'm ready for the next book.
Cheree Castellanos Edits
May 30, 2019 rated it it was amazing
What a book! I'm dying! The more I get, the more I want, no NEED! Filled to the brim with everything you want in a story, love, action, suspense, danger, sadness, the need for the characters to listen to your screaming! So much goodness!
Cindy Fong
May 23, 2019 rated it it was amazing
Wow, The next installment is electrifying and adrenaline inducing. As Ava searches for her twin, more drama and information unfolds. Revelations are mind-blowing, new characters and locales are introduced and we get to watch Ava and Rhett get closer to each other.

This was a fast paced read as I was immersed in the world that Mary Ting conjured. I cannot wait to see what new adventures we readers will be brought into going forward. Bravo!
Nov 04, 2019 rated it liked it
I do recommend the series, even though I am undecided on if I’ll continue it myself.
Michele(mluker) Luker
Aug 25, 2019 rated it it was amazing
Helix is the second installment in the ISAN series...thank god there is going to be five books in this series because I just don't want it to end.

This story heats up with complex conspiracies, tangled twists, and action...action..action...

SO much happens in this story, you have to be alert at all times because you will never guess or expect what will happen. Some secrets will be revealed, while others just get deeper and mysterious.

The characters are amazing....I was content to be back into Ava
Gloria Bustillos
Jun 05, 2019 rated it it was amazing
Total awesomeness Mary. This book had me on edge of my seat with plenty of action and suspense. I hated when it ended, I need the next book. It was definitely a great read.
Kelly (Wild and Wonderful Reads)
Full review at wildandwonderfulreads.com

Actual rating: 4.5 stars

Helix is action packed and kept me on the edge of my seat -- I absolutely adored it!

This is book two in the YA dystopian ISAN series by Mary Ting.  The story is told in the dual POVs of Rhett and Ava, which added a lot of depth and gave me more of what I was wanting after the first book -- Rhett!

Mary Ting has a phenomenal writing style and is an amazing story teller.  She has created a fascinating world in this series.  The stakes a
Tonja Drecker
Sep 09, 2019 rated it it was amazing
This is one of those reads, which hits in high gear and doesn't let go until the last page...and not even then.

I did read the first book in this series and highly recommend reading it as a series, since each book starts where the last left off.

While book one set the stage, this book takes intrigue and danger head on. There's so many secrets, and with every answer which comes, even more questions come to light. Every scene and moment left me wondering what was about to happen next. In other words
Aug 30, 2019 rated it it was amazing
Omg Mary Ting I didn't think you could beat the action from ISAN, but boy was I wrong. I loved reading how Ava began to remember bits and pieces of the past she once had and to see her strength continue to drive her forward to find the answers she seeks and to ultimately do something to stop the evil that is ISAN. I didn't want the book to end. I am going crazy trying to figure out how Ava will help bring to light the secrets that ISAN has been hiding and bring down the organization that has rui ...more
Dorothy Dreyer
Sep 08, 2019 rated it it was amazing
I can't wait to see this series on screen. Ting has created a fascinating world and intriguing characters that a reader can really get behind. Action, drama, mystery, and some sizzling romance all come together in this book you're not going to want to put down. ...more
Dani Hart
Aug 30, 2019 rated it it was amazing
A thrilling follow-up to ISAN, Helix answers so many questions while adding more to be revealed in the next installment, keeping you yearning for more. This book does not disappoint, filled with as much adventure, danger, heartbreaking truths, and complicated love as the first book.

Mary has taken all the elements of a great story and woven them into an exciting series that I can’t wait to continue!
Babbling Chatter  Reads
Apr 25, 2020 rated it really liked it
⭐️⭐️⭐️⭐️💫 4.5 stars!
Jeannette dods
May 30, 2019 rated it it was amazing
Wow, what an awesome thrill ride! I had moments of "Awww" and "NOOO!" I could place myself with the characters while they plotted and discovered secrets that led to more secrets. I love this fascinating world you have created Mary! You have done an amazing job. ...more
May 31, 2019 rated it it was amazing
Helix is the second book in a fantastic new series by the brilliant Mary Ting. This book allows you to dive deeper into this incredible story and savor the amazing characters and the breathtaking plot that much more. I have been waiting for this book for so long that I devoured every word and reveled in each emotion it evoked. What a stunning masterpiece that has me absolutely dying for more! This beautifully intricate plot will latch onto your heart and refuse to let you go while its characters ...more
Movies, Shows, & Books
Aug 27, 2019 rated it it was amazing
Note: This review contains NO spoilers

Wow! Wow! Wow! Just wow! Helix , sequel to ISAN , is an action-packed and fast-paced dystopian/sci-fi romance that is filled with twists and turns! Where ISAN introduced readers to this world and its characters, Helix takes it even further as secrets and truths are revealed. Mary Ting has blown me away with this new series! The multi-layered personalities of her characters drives the story forward unleashing an intriguing and emotional tale of espi
Jenny Zimmerman Black Words-White Pages
What a fantastic read this was!!!

The characters were phenomenal!! Ava is still one awesome character!! And I just couldn't get enough of Ava and Rhett.

The story-line was incredible!! I had a hard time putting this book down. So much action and suspense kept me reading from beginning to end. I highly recommend this read!!

Updated Review:
ISAN- International Sensory Assassin Network

WOW.....This book was freaking amazing!!

The characters were phenomenal!! I loved following this new adventure with Ava.
Mar 14, 2021 rated it really liked it
Ava's memory is still fragmented, but determined to find her newly discovered twin, she returns to ISAN. Ava is on the lookout for information to help her in her quest, but the more she looks, the more lies she uncovers. She learns Helix may not be what gives her her enhanced abilities and that ISAN is suddenly recruiting a large number of male assassins even though Helix is supposed to be too much of a strain on them. Ava learning these secrets puts her in a dangerous position with ISAN. In or ...more
Feb 03, 2021 rated it it was amazing
Read on blog: https://www.mayasbookshelves.com/heli...

This book was incredible. If you didn’t know already, I devoured the first book in the series (ISAN), and this time around, it was exactly the same way. I found myself addicted to the book and couldn’t stop reading, I finished it in a matter of hours!

As Ava is slowly getting fragments of her memory returned to her, she searches inside ISAN compounds to find her family. Memories and her love for Rhett haunt her every move and distract her
This review is in relation to book 2 in the series so while I will steer away from spoilers for this book, there would be spoiler of book 1 (unavoidable if I want to be coherent in this review, sorry!)

I have been aware of this author, Mary Ting, for a while but haven't really been compelled to pick up her books until now. I guess I was just in the right mood for a dystopian novel with a kick ass heroine or two or maybe hundreds. I expected lots of subterfuge, action, and a bit of romance to spic
Nikole Clow
Sep 24, 2019 rated it it was amazing
Helix, which is the second book in this series, was action-packed and thrilling. Every chapter was filled with beautiful prose and rich content, with captivating characters and a love story you won’t soon forget. This is a thrilling ride you won’t soon forget.

What was really nice about Helix was getting to see inside Rhett’s head, as the book shifted between his and Ava’s point of view. Rhett’s devotion to Ava is what made me love him even more. He’s one of those swoon-worthy characters you will
Ashley Dawn
Jun 17, 2019 rated it it was amazing
I cannot tell you how excited I was for this book. The first book was amazing but ended with lots of questions (so you should absolutely read it first). Ava is still strong and determined. She is back with her ISAN team but she has a secret mission that none of them know about. I love her interaction with her team, they are close and she is determined to protect them. She is always thinking of others over herself and I admire that.

Where the first book set up the action, Helix sped up the momentu
DawnMarie  Carpintero
Sep 10, 2019 rated it it was amazing
5 Mega Hit Stars

I received this book for my honest review.

Have you ever wanted to just take off to another place entirely where it didn't matter what you did or how you did it as long as you took yourself to an entirely different plateau? This author brings you that and more with the author's imagination and a bunch of characters that go around as they want in her head making this a hit. This is the second book in this series and if you thought the first was a hit this one will have your head sp
Diane Lynch
Sep 22, 2019 rated it it was amazing
Shelves: ebook
Matrix meets Alias/James Bond. Mary Ting’s Helix (International Sensory Assassin Network #2) takes place following book one, ISAN. Ava is starting to remember the past. She returns to ISAN in an attempt to find her father and twin sister. This science fiction dystopia novel is suitable for young adults.

Mary Ting continues to do an amazing job with this series. Helix was told from both Ava’s and Rhett’s point of view. I enjoyed both perspectives. The story reminds me of a combination of the Matri
Megan | Bookstacks 'n Golden Moms
Oh my gosh, that cliffhanger!

I'm normally not one who likes the second book in a series more than the first. For some reason, they all seem to fall a little flat. This one, however, is an exception!

I loved Ava and Rhett. Through the book, they're rediscovering their relationship (as Ava gains more of her little memory blips), and Ava's eyes are being open to the evil of ISAN. New characters were introduced that I really enjoyed. Cleo was a bit of an annoyance at first, but only because of her s
Feb 24, 2021 rated it really liked it
What kind of ending was that? Now I need the text one!!
I received this copy in exchange for an honest review. Thanks to Mary and her team!
I read ISAN last month and I knew right away that I was going to love this series. Honestly, the whole dystopian//secret agency deal was fantastic and extremely interesting.
This book starts exactly where the other one ended, but this time we have Rhett's POV. I really appreciate that now we can learn more about him since I fell in love with this man dur
Ga Books LoverX
Sep 17, 2019 rated it it was amazing
Mary Ting- You do it again!! Geez, this series just keeps getting better and better. I enjoyed ISAN, but getting even more details and experiences from BOTH Ava and Rhett- I am a huge fan of the dual POV and getting motives behind stuff- was freaking everything!

This book was action freaking packed with so much going on, but not too much where you are not able to take a second and breathe. It is so freaking crazy how many questions can be answered but then a gazillion more are added in! This seri
Sep 17, 2019 rated it really liked it
Helix is the second book in the International Sensory Assassin Network series, and if you haven't read book one, ISAN, you'll want to do that so everything in book two makes more sense.

I don't even know if I have words for Helix. It's definitely a crazy book.

There's a lot more action, a lot more violence, and some interesting secrets are brought into the light.

Ava is still determined to track down her father and her twin sister, but ISAN is on to her and will do anything to keep her from discove
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Mary Ting is an international bestselling, award-winning author. She writes soulful, spellbinding stories that excite the imagination and captivate readers around the world. Her books span a wide range of genres, a

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International Sensory Assassin Network (4 books)
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