Catalyst – Review // A Thrilling End To My Favorite Duology

Catalyst by Lydia Kang
Book 2 in the Control duology
Genre: YA sci-fi (science fiction)
Pages: 416
Format: paperback
Source: bought
Goodreads | Amazon | Book Depository

Contains spoilers for book one. Read at your own risk.

I loved Control, so I’m not sure why I took so long to read Catalyst. It was fast-paced, thrilling, and everything I had hoped for to conclude this duology. πŸ˜€

the plot

The story starts a year after Control ended. Cy was with Aureus for a year and was still with them. Wilbert was gone, since he was secretly working for Aureus all along. The remaining members of Carus are very worried and don’t know what to do, until Caliga shows up at their door. Explosions, escape, and a ton of danger, suspense, and ulterior motives follow. It was a very fast-paced and adventurous story, and I loved every page. πŸ˜€

I also loved all of the traits that were mentioned and described. Zel had longevity, Cy had healing, Hex had four arms, Vera had green skin, Wilbert had two heads, Marka had a heightened sense of smell, Caliga made anyone around her numb and nauseous, and Micah had electric powers. ThereΒ wereΒ a lot more throughout the story, but I won’t spoil any of them.Β I thought it was really creative, and I loved learning more about each individual trait. πŸ˜€

the characters

If I loved Zel before, I love her even more now. She was a very intelligent geneticist with a longevity trait, and was trying her hardest to keep everyone she cared about safe and sound – her sister Dyl, her boyfriend Cy, and the other “mutants” that had become her family. I loved her attitude. She was sassy, determined, and caring. I also liked that she had a disability – it’s sad, but it also made her more realistic. She had Ondine’s curse and that’s basically when she can stop breathing while asleep, and needs a special necklace to help her. I admired her strength when she was without her necklace, whether it was by choice or by force. She’s definitely earned a place on my favorite female leads list. ❀

To prevent this review from being a mile long, I made a list of my thoughts about other characters.

  • Dyl was equally as sassy and determined as her sister, and equally as loving. She’s one of those sweet characters you want to protect at all costs. ❀
  • Cy was still a bit like the broody guy he was in the first book, but he did change. He was more open and loving toward Zel, and not as overprotective. πŸ˜€
  • Caliga was completely different from the way she was in the first book. She was much nicer and more accepting, and a loyal friend dedicated to making up for the trouble she inflicted previously. πŸ™‚
  • Micah was a complete jerk in the last book, and I wasn’t sure what to make of him for most of this one. He seemed to switch back and forth between sides, and evade straight, honest answers. In the end he proved himself. I wouldn’t say I liked him, but I was much more tolerant of him. πŸ™‚
  • Γ‰lodie was in a similar situation as Caliga, but didn’t try as hard to prove herself. I was mostly neutral toward her, and didn’t pay much attention to her until the end, but she was still a good, fleshed-out character. πŸ˜‰
  • Marka and Kria were wonderful mother figures, and I loved them both. I think Marka is my favorite, but not by too much. I can’t think of many sci-fi books with a present parent figure (or someone similar) so this was a nice change. πŸ˜‰
  • Then, finally, the old Carus crew: Hex, Vera, and Wilbert. I loved Hex and Vera. They were the same quirky, loving people that I fell in love with in Control, and they were just as fantastic here. I’m not sure if I fully forgive Wilbert, but he was a nice guy and helped out this time, so I think he’s alright. πŸ™‚

the setting

This story takes place in 2151 in a futuristic America, where there are a handful of large states instead of 50 small ones. To name a few, there’s Neia, Inky, and Minwi. California is the same, though. I love this world. The basis of it might not seem very original, but it is. There’s so much more to it – tons of rules and intricate details. I imagined it as the US, but more rundown and divided, and more technologically advanced. I don’t think I’d want to live in it, but it’s really cool and interesting to imagine. I would love if the books included a map. πŸ™‚

the relationships

And in terms of relationships, this book had everything. Zel and Dyl had a strong sisterly bond, and care about one another more than anyone or anything else. Zel and Caliga had a strong friendship, and I loved how much the dynamic between them changed: from enemies in Control, and then friends in this book. Zel and Cy were dating (basically) and had a wonderful, healthy romance. I shipped them so much, and I’m glad things worked out…especially after Cy sacrificed himself for Zel and Dyl at the end of the first book. Then, of course, all of the “mutants” were a big, metaphorical family, and I loved that to pieces. ❀

Oh, and I love the two new ships too. πŸ˜€

the twists

If I thought the plot in the first book was crazy, then this one was absolutely nuts. It was full of twists and feels, and everything I didn’t expect to happen did. Some might say it was rushed, but I thought it was fabulously thrilling. There was another betrayal, and it didn’t impact me as much asΒ Wilbert’s in the first book, but it still completely shocked me. Lydia is good like that. XD


So, long story short, I just loved Catalyst. I loved everything about it. While I’m aware that there won’t be a third book, if there ever was one I would devour it. I love these characters, and the one-of-a-kind sci-fi world, and the strong bonds between everyone. It’s just so fantastic, and I would recommend it to everyone. It’s easily my favorite duology. πŸ˜€

my rating: 5 out of 5 stars

Have you read this book? Is it on your TBR? If you have read it, what did you think? I’d love to know? πŸ™‚

I’m off to film a video and then start The Progeny by Tosca Lee. πŸ˜› I hope you’re all having a fabulous day/night! ❀

Until next time…

post end

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3 thoughts on “Catalyst – Review // A Thrilling End To My Favorite Duology

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