Annie has built a life around watching other people’s cats while they go off to enjoy the lives she wishes she had, but her latest cat-sitting assignment offers more excitement than she bargained for in The Terrarium by Katie Collom. When a mysterious client leaves Annie in charge of her cat, Hades, without ever meeting her in person, Annie begins to suspect that the glamorous house holds secrets far more sinister than an eccentric homeowner’s locked doors.
![Book cover of The Terrarium by Katie Collom, a suspense novel featuring a mysterious cat-sitting assignment and a house filled with secrets.]](https://i0.wp.com/writeontheworld.com/wp-content/uploads/2026/10/The-Terrarium-by-Katie-Collom.jpg?resize=674%2C1024&ssl=1)
For a true-crime enthusiast who spends her free time speculating about murder cases, the possibility that her client might be a serial killer is an irresistible mystery. This darkly humorous suspense novel delivers an entertaining cast of women whose behavior ranges from questionable to downright alarming, even if a few structural choices kept me from enjoying the story as much as I might have.
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