Six kill by Robert Parker

Spenser, Boston’s toughest private investigator, is on the trail of a sadistic serial killer targeting young women. As the body count rises, Spenser must navigate a city filled with deception, danger, and moral ambiguity. With each clue, the investigation grows more perilous, testing Spenser’s courage, intelligence, and resolve. Six Kill is a taut, fast-paced thriller that combines gritty detective work, suspenseful twists, and Robert B. Parker’s signature sharp dialogue and vivid storytelling.