"Catalyst" totally threw me for a loop! It had this old-school "Goosebumps - Choose Your Own Adventure" vibe, which was seriously cool 'cause, hello, multiple endings! 🤯 It was a wonderfully weird read; sometimes I was like, "Wait, what's happening?" but I was so hooked I devoured it in two days flat. Loved the mystery!

Catalyst by Ianic Mathieu is, without a doubt, one of the coolest books I've ever read. It’s not just a story—it’s an experience. The novel is crafted like an interactive murder mystery game, complete with found documents, hand-drawn sketches, and diary entries that pull you deep into its world. Every detail feels like a clue, making you an active participant in unraveling the mystery. The psychological twists and immersive storytelling kept me hooked from start to finish. I couldn't put it down and found myself constantly theorizing about what would happen next. If you love mysteries that challenge your mind and engage you on multiple levels, Catalyst is a must-read.

All right, all right. This is my first time reading such a book, the way it is made is absolutely fascinating and makes the reading experience so different, everything is really immersive, from the diary entries, to the doodles etc. I am really glad I picked up the book as an arc reader, I do not regret it one bit.

This is the first time I have read something like this. It is a whole experience, not just a book. We are peaking into Dr. Novak’s journal and session notes and it paints a picture of how he thinks. It is presented like a journal. There are some pictures. I actually felt like I was going through someone’s file. I loved how it lead me down Novak’s path but there were different endings you could choose from, depending on how you experienced the information given. I received an advance review copy for free through BookSirens, and I am leaving this review voluntarily.