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International Sensory Assassin Network Series by Mary Ting

Eliminate the assigned target, and follow ISAN’s superior command, but what if you’ve been fighting the wrong cause all this time?

Title: International Sensory Assassin Network
Author: Mary Ting
Genres: Fantasy > Sci-Fi / Dystopia
Read Format: Kindle Edition
Total Pages: 1,369
Reading Date: 27th January – 08th February 2023

The Reading Order – How to Read International Sensory Assassin Network Series by Mary Ting

  • 1 ISAN
  • 2 Helix
  • 3 Genes
  • 4 Code
  • 5 AVA (Final book, expected publication – 30th July 2024)




Meteors devastated the Earth. World Governments developed plans to help surviving citizens. The United States disbanded and salvageable land was divided into four quadrants—North, South, East, and West— governed by The Remnant Council.

Struggling to survive, seventeen-year-old Ava ends up in juvenile detention, until she is selected for a new life— with a catch. She must be injected with an experimental serum. The results will be life changing. The serum will make her better. To receive the serum, Ava agrees to join a program controlled by ISAN, the International Sensory Assassin Network.

While on a mission, she is abducted by a rebel group led by Rhett and told that not only does she have a history with him, but her entire past is a lie perpetuated by ISAN to ensure her compliance. Unsure of who to trust, Ava must decide if her strangely familiar and handsome captor is her enemy or her savior—and time is running out.

My thoughts…

When the book starts with action, the rest of the stories or the series will follow suit, action-packed and fast-paced! I’ve read several series by the author, and they all earned five stars from me. Thus, I have high expectations.

This book did not disappoint me, and it made me wonder if Russ was on her side until the end of the story. But there’s yet to be an answer to that question. The ending does not have a killer cliffhanger that warrants me wanting to read the next book immediately. Thankfully.





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 access her superpowers, and the number of male assassins—previously considered too volatile to tolerate Helix—is growing in every territory.

The more Ava uncovers, the more of a threat she becomes to ISAN. Her only salvation may be to join the rebels … if she isn’t killed first.

My thoughts…

While the first book’s POV is from Ava, this second book alternates between her and Rhett. It’s equally enjoyable as we discover what’s on Rhett’s mind and progress on his side while Ava loses concentration in the compound.

A few surprising revelations in this book, which is delightful. But the identity of Ava’s twin, I can guess who since I have the next book ready on hand. I can put two and two together, especially when learning some new characters’ names. The cliffhanger isn’t a cliffhanger for me. But the early readers may be getting impatient for the revelation.





While searching for the HelixB88 anti-serum on the black market, Ava uncovers valuable intel that may help the rebels in their fight to bring down ISAN—the location of a hidden facility. But first, the insurgents must find the female citizens unexpectedly displaying powers without the use of the Helix serum before ISAN captures them.

As the rebels join forces with other sectors, ISAN plans their destruction by using someone they don’t suspect at the rebel home base. A traitor within.

Now, Ava must make a dangerous decision, one that could risk their capture—or worse.

My thoughts…

An exciting read with plenty of heart-racing moments and twists that will turn the wheels on your brain and leave you breathless!

Compared to book two, which has two people’s POVs, this third book has even more! It’s not surprising as we have plenty of grounds to cover. However, the protagonist gets her story written in the first person and the rest of the characters, such as Rhett, Justine, Mitch, and Gene, use the third-person narration.

By the end of the story, you’ll be cursing Ava for being stubborn, and your brain will be busy processing and assessing the situation for the possible outcome. This book is the best one in the series so far, with enough dose of romance, actions, teamwork, and a killer cliffhanger!


Behind enemy lines, new soldiers will emerge, and unexpected heroes will rise.

Ava is a prisoner. And she is not the only rebel held hostage at ISAN’s secret compound. As she plans an escape, the lives of the rebel prisoners are in her hands, along with those she thought were dead.

Rhett and his team desperately search for Ava while one of the Remnant Council joins forces with another network looking for the creator of the Helix serum. And time is running out. Mr. Novak has been secretly creating an army called CODE, and what he plans for Ava will mean a permanent end to the rebels—and her.

My thoughts…

Besides Ava, Rhett, Mitch, and Justine’s POVs, this book has three more people’s POVs – Zen, Josephine Chang and Momo. I didn’t expect to read from Momo, but I liked that kid, so I didn’t mind it.

Seriously tho, I thought this was the last book. But I was wrong! How I wish I had yet to start reading this series. By the end of the story, it promises more action to come in book five, the final book, and I cannot wait to read how Mary will wrap up this fantastic story.

I wonder if Gene is dead, or will he be in the next book?

The world created by Mary Ting has much to offer, and I can see her writing a sequel to this series which includes Momo and her team as well as the ‘baby’. Well, I can only dream of it 😜. For now, I’ll have to patiently wait for August to come and read the book before judging if there’s a possibility for a sequel or no 😀.

Update 06/03/2024: As per Mary Ting, book five will be out on the 30th of July 2024!

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