底牌

The confined setting with a group of strangers adds so much tension. I wonder if the card game itself was inspired by real-life whodunits or just a clever device.

The way each character's secrets come to light kept me guessing. I’m curious how Christie planned the interactions to keep readers on their toes.

His attention to detail and psychological insight stand out. I wonder if Christie based him on any real detectives or if he was entirely fictional.