The Luminaries by Eleanor Catton (Pub. 2013)

The Luminaries by Eleanor Catton is a complex historical mystery set in New Zealand's 1866 gold rush. It begins when Walter Moody, a newcomer, stumbles upon a secret meeting of 12 men who are discussing a series of unexplained events: a wealthy man's disappearance, a prostitute's suicide attempt, and a large fortune found in a dead man's cabin. The story unfolds as Moody becomes entangled in this intricate web of lives and secrets, with the narrative structured around astrological signs and planetary movements that correspond to the characters and their roles in the mystery.