What thriller would you recommend if Zirza wanted to improve the quality of her cheese?

[Cait]

Cannonballers around the world agree that the hardest reviews to write are the ones for the books that were just ok. About Ruth Ware's The Woman in Cabin 10, Zirza says, "It's cheese, but not the good kind, no, the average kind from the supermarket that's good as sandwich filling but not much else." (Cannonball Read 13)