Trent's Last Case (Version 2)

When Sigsbee Manderson, a powerful, universally despised financier, is murdered in full view of his coastal estate, the obvious suspects are his restless wife Margaret and the half-dozen household members who should have witnessed everything. But nothing is obvious to Philip Trent: part artist, part newspaper reporter, part amateur sleuth, and entirely smitten with the widow he's secretly convinced of murder. Bentley constructs a labyrinth of circumstantial evidence and psychological suspicion, pulling readers along as Trent's certainty wavers and his feelings complicate his logic. Then comes the twist that rewired detective fiction forever. This is the rare mystery that rewards rereading, where the solution doesn't just surprise but recontextualizes every clue. It ended Bentley's career as a novelist precisely because no one could imagine how he could top it.