A book that captivated you when no genre felt right anymore?

I feel like I'm in a strange in-between phase with books lately. I used to read existential/identity-focused novels (Dostoevsky and Dazai, for example), then read some splatterpunk, and I recently found myself drawn to the atmosphere of Carlos Ruiz Zafón's Cemetery Of Forgotten Books series. The thing is, I no longer know what "genre" seems [...]