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All Cry Chaos (Henri Poincaré Mystery, #1)
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All Cry Chaos (Henri Poincaré Mystery #1)

3.71  ·  Rating details ·  993 Ratings  ·  178 Reviews
All Cry Chaos, a debut thriller by the immensely gifted Leonard Rosen, is a masterful and gripping tale that literally reaches for the heavens.

The action begins when mathematician James Fenster is assassinated on the eve of a long-scheduled speech at a World Trade Organization meeting. The hit is as elegant as it is bizarre. Fenster's Amsterdam hotel room is incinerated, y
Hardcover, 332 pages
Published September 1st 2011 by Permanent Pr Pub Co (first published October 28th 2010)
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Lewis Weinstein
Mar 18, 2013 rated it it was amazing
A fractal is a never-ending pattern. Fractals are infinitely complex patterns that are self-similar across different scales. They are created by repeating a simple process over and over in an ongoing feedback loop. Driven by recursion, fractals are images of dynamic systems – the pictures of Chaos.

Jules Henri Poincaré 29 April 1854 – 17 July 1912) was a French mathematician, theoretical physicist, engineer, and a philosopher of science who made many original fundamental contributions to pure and
Apr 03, 2013 rated it it was ok
From the previous reviews, plenty of people love this so maybe you will too, but I didn't.
A detective descendant of the physicist Poincaré investigates a math-based crime with so many people asking him if he's related to the other Poincaré that even he gets tired of answering the question. Is this supposed to be funny or profound? It just seems contrived.
Without giving away the plot, a major part of the book is about a threat to his family; the whole interaction there that sets up the maudlin
Jul 07, 2011 rated it it was amazing
Recommends it for: lovers of convoluted math/science mysteries, people who liked the TV show Numbers
Shelves: first-reads, reviewed
First off it is important to note that I'm neither a mathematician nor am I terribly adept in math. I am however a biologist and so this book and its study of patterns, including pictures, totally engrossed me. The mystery is very satisfying and one is immediately drawn to Inspector Poincare of Interpol and his various cohorts, including the young shoot from the hip Paolo Ludovici. The characters are well drawn, the travels to solve a very convoluted case very real and the mystery itself multi-l ...more
Dec 16, 2015 rated it really liked it
A new author to me and what a writer. After reading Lewis Weinstein's review, (see below) I wondered if I could keep up with the story. It is a bit challenging, but a terrific plot and characters. I'm looking forward to reading Rosens next book in the series and any that he writes.
Bill Lancaster
Jun 03, 2014 rated it really liked it
Shelves: 2014-books
"All Cry Chaos" is one of those novels that helps to reshape the mystery genre. While it is ostensibly a straightforward mystery, it is also a novel augmented by ideas and concepts not used everyday by mystery writers.

Henri Poincare is a French Interpol agent on a path to find who murdered an American mathematician in Amsterdam. The goal is to find the person responsible, but primarily it is to also stop further violence conducted in the same precise way — small, highly targeted bombs designed t
Apr 04, 2014 rated it really liked it
This was a book I listened to on a road trip. At first I thought it was much too slow. The hero, Henri Poincare, is French; an inspector for Interpol. I had trouble with the foreign names and keeping the characters sorted out. However, once I found my stride with the narrative voice, I was hooked.

The plot features the murder of a mathematician, and the author did a phenomenal job of teaching me a bit about higher mathematics (fractals, anyone?) while he kept his story moving along. I love fictio
Markus Himmelstrand
Jun 08, 2014 rated it it was ok
Leonnard Rosen has put together a decent crime novel and the first chapters are pretty exemplary in how he's setting up his characters and their place in the world and the crime to be solved. However neither the characters nor the story has the necessary depth to sustain a whole novel and after a while I began to wonder why everyone kept repeating how good an investigator Poincaré is and how he has 'aged with dignity' (of all things) when he seems to almost deliberately avoid the final conclusio ...more
I am not familiar with Leonard Rosen nor his main character in this book. The main character is Henri Poincare. He is an Interpol agent. All Cry Chaos is centered around Henri, his family and his cases.

Poincare is given a case after a mathematician, James Fenster, is murdered on the eve that he is supposed to give a speech at the World Trade Organization meeting. I am no math wiz and found this story interesting and confusing at the same time. When math was being discussed I sometimes found myse
Jan 29, 2012 rated it it was amazing
This book came to me on a recommendation from my local mystery bookstore, Once Upon a Crime. Apparently the author is local.
But I never would have guessed. The incredible detail on international locations and the many customs and languages gave this book a flavor that was far from home. From Paris to Quebec to Amsterdam to Boston, with a short foray to Minneapolis and St. Paul, this was page-turning. I could not figure out how all these disparate narrative threads were going to come together.
Nov 04, 2011 rated it it was amazing
Henri Poincare is a high-ranking field investigator for Interpol in his late 50s who has spent several years tracking down the worst of the Serb war criminals. Now he faces dreadful retaliation against his family for that success just as he begins an investigation into the causes of the murder of a Harvard mathematician in Holland by means of a bomb. The dead professor worked at the highest level of fractal analysis (the part is the whole, patterns in all objects or constructs seem to be similar ...more
Mar 17, 2013 rated it really liked it
Shelves: 2013-reads
PROTAGONIST: Henri Poincare, Interpol agent

Henri Poincare is an Interpol agent who is investigating the death of Harvard professor James Fenster. Using chaos theory and the study of fractals, Fenster had uncovered an amazing theory. At the same time, Poincare's family is under threat from a Bosnian terrorist, with terrible results for his family. Poincare does an excellent job of making fractals understandable, and it helps to read a version with illustrations. But even with that the
Feb 13, 2015 rated it really liked it
I really liked this book and found it very moving. A part that I won't go into I found to be truly heartrending and depicted in such a way that it felt very real so that one could feel the real consequences of the evil inflicted on innocent people. I hope Mr. Rosen is going to continue this series. The two books I read seem to be bookends - one (written after the other) a prequel and the other the end of the main character's career.
Sep 03, 2011 rated it really liked it
Shelves: mystery
Lovely mystery with strong theological reflections connected to chaos, the question of why God allows terrible suffering, and fractals. Henri Poincare, the great-grandson of mathematician Jules Henri Poincare, begins this tale an Interpol Inspector. Like all good stories, there's big trouble to wrestle and a fine wrestling it is. Along the way we the readers can join that wrestle and also consider the impact of cruelty and pain across generations and the abuse of power.
May 29, 2012 rated it liked it
a good mystery and interesting character but the second plot, with the hero's family was distracting and did not read true.
Jun 15, 2012 rated it it was amazing
Loved it! Smart thriller that kept me guessing! Can't wait to meet the author tomorrow!!!!
Keith Weaver
Jul 04, 2018 rated it it was amazing
This book is a thriller set in France (Paris, Lyon, Fonroque in the Dordogne), Germany (Garmisch-Partenkirchen), Austria (Starnitz), Holland (Amsterdam), Canada (Quebec City) and the US (Cambridge, Minneapolis, Pasadena, Los Angeles, Las Vegas). Henri Poincare, great-grandson of the mathematician of the same name, is an inspector at Interpol. Poincare has served at Interpol for thirty years and is a senior and highly regarded field agent.

Poincare has a wife (Claire), and a son and daughter-in-la
Midwest Geek
Feb 14, 2018 rated it liked it  ·  review of another edition
Recommends it for: those who like police procedurals and aren't put off by a bit of physics and philosophy mixed in.
Shelves: mystery, audiobook
This is well-written debut by Rosen; he's a very good writer. I enjoyed the intricate characters and the personality of Henri Poincaré, purportedly the great-grandson of his famous namesake. The story is intricate, with many twists and turns. I sort of guessed where things were headed, but the ending is quite preposterous. The mathematician Fenster resembles Benoît Mandelbrot in several respects, both in terms of his topical focus and in terms of his attempts to extend fractals to a comprehensiv ...more
Oct 06, 2017 rated it it was amazing
This is one of the few mysteries I've read that almost needs to be read multiple times. Not because the plot is hard to understand but in order to think about everything else Rosen is saying. His constant theme about the structures of everything being the same (all those pictures of fractals), the destructiveness of the human species and our simultaneous desire for redemption, the significance of a family being scattered and then reunited, in fact the significance of family altogether. Our guide ...more
May 15, 2018 rated it it was ok
All the elements are there: international police, political intrigue, apparently senseless violence, ethnic historical background, theoretical mazes worthy of Dan Brown, and an impossibly named detective Henri Poincare, related to the eponymous mathematican. With all the elements in place, why does the book come out like a deflated soufle? Something is missing. It is flat, overplotted, flat, and, um, flat.

I'm willing to give Rosen another chance, just in case this is first-book jitters, but I s
May 07, 2018 rated it liked it
Interpol agent and descendant of the great mathmatician, Henri Poincare investigates a death by a mysterious explosion at a WTO meeting. This is the first in the series and I will look for the next one.
Jul 06, 2017 rated it really liked it
Frighteningly themed plot, interest-keeping. Like this series & main character. Love the narrator and his works (sometimes better than the book he's performing). Recommended.
Jul 18, 2017 rated it really liked it  ·  review of another edition
Well-written, but I can't say I enjoyed it. It was dark.
Jun 14, 2017 rated it it was amazing
Loved this book. Good plot with lots of twists. Well developed characters. I particularly liked and appreciated Henri and his ethical pursuit of rules.
Sep 04, 2017 rated it liked it
A Killer comes after the family of the cop who caught him.
Any Length
Mar 14, 2017 rated it it was ok
This book was too long and had too much pain and suffering in it for my liking.
Jan 07, 2018 rated it it was ok
Meh. I liked this better as the TV series, Crossing Lines.
Aug 20, 2011 rated it it was amazing
Author: Leonard Rosen
Title: All Cry Chaos
Description (source): The action begins when mathematician James Fenster is assassinated on the eve of a long-scheduled speech at a World Trade Organization meeting. The hit is as elegant as it is bizarre. Fenster's Amsterdam hotel room is incinerated, yet the rest of the building remains intact. The murder trail leads veteran Interpol agent Henri Poincaré on a high-stakes, world-crossing quest for answers.

Together with his chain-smoking, bon vivant coll
Joyce Lagow
Aug 26, 2011 rated it it was amazing
Henri Poincaré, the great-grandson of the legendary mathematician Jules Henri Poincaré, is an Interpol senior inspector based in Lyons; he has a small farm near the city where he lives with his wife, Claire. His son Etienne, his wife Lucille, and their three children, Georges, Emil and Grandpa’s favorite, Chloe, live in Paris. Henri has recently concluded a case in which he tracked down Stipo Benovic, a genocidal Serbian murderer who was accused of massacring 70 Muslim men and boys in the recent ...more
Angie Boyter
Nov 11, 2012 rated it really liked it
The publisher write-ups for this book do not do it justice. From the description I expected a thriller (fine with me) with perhaps a mathematical element (also fine with me) , and it delivers on this expectation. Given that the detective is the descendant of a renowned mathematician and is described as having a sidekick who is a bon vivant, a reader might also expect some light elements in the book, and this is most definitely not the case. All Cry Chaos is an emotionally powerful exploration of ...more
George K.
Aug 13, 2012 rated it really liked it
Αυτό είναι το πρώτο και μοναδικό μυθιστόρημα που έχει γράψει μέχρι στιγμής ο Λέοναρντ Ρόζεν, αν και όπως ο ίδιος λέει, είναι αρκετά μεγάλος για πρωτοεμφανιζόμενος συγγραφέας. Πάντως για πρώτη προσπάθεια είναι πολύ αξιόλογη και προμηνύει καλύτερη συνέχεια.

Μια μέρα του Απριλίου, μια δυνατή έκρηξη κλονίζει συθέμελα ένα κεντρικό ξενοδοχείο του Άμστερνταμ. Η βόμβα διαλύει κυριολεκτικά ένα δωμάτιο του ξενοδοχείου και εξαφανίζει κάθε ίχνος ενός ευφυή 30χρονου μαθηματικού που δίδασκε στο Χάρβαρντ, του
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Aka Leonard J. Rosen

Leonard Rosen lives and works in the Boston area. He has contributed radio commentaries to Boston’s NPR station, written best-selling textbooks on writing, and taught writing at Harvard University and Bentley University. The Tenth Witness is his second novel.

His first, All Cry Chaos (also featuring Henri Poincaré), is a much-praised award winner in both the literary and myster
More about Leonard Rosen

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