Yeah, I do. I love books where every clue feels like a piece of a jigsaw. The Westing Game is a playground for my brain, and The Da Vinci Code has me rearranging symbols until the last page. Gone Girl forces me to revisit the whole timeline when the twist lands. I also dig the intricate puzzles in The Girl with the Dragon Tattoo, especially the way the family history is a cipher that only unlocks after you piece together the clues. And don't get me started on The Name of the Rose—every page is a new layer of mystery to untangle.