The fifth book in the heart-stopping King and Maxwell series, The Sixth Man by David Baldacci could keep pulses racing as Sean King and Michelle Maxwell face their biggest challenge yet.

After alleged serial killer Edgar Roy is apprehended and locked apart in a psychiatric unit private investigators Sean Ruler and Michelle Maxwell are called in by Roy’s lawyer-an old friend of Sean Ruler- to look into the case. But their analysis is certainly derailed before it starts: while en route to their initial about The Sixth Man meeting with the lawyer, King and Maxwell discover his inactive body.

A rash of terrifying events starts to unfold which is up to Ruler and Maxwell to uncover the reality: can be Roy a killer or not really? But the more they dig into his past, the more these are bombarded with obstacles, half-truths, and dead ends that make filtering the facts extremely difficult. As each new theory brings a fresh revelation, Ruler and Maxwell will be pushed to the limit. Could this lethal case be the one that leaves the duo completely parted?

The Sixth Man is followed by the sixth and final book in the Ruler and Maxwell series, Ruler and Maxwell.