Mysterious Benedict Society and the Prisoner's Dilemma (Book 3)

Reynie, Kate, Sticky and Constance are back – but so is Mr Curtain, with another devious scheme!

Can the Mysterious Benedict Society thwart Mr Curtain’s plans, even whilst held prisoner? Join them on their adventure as they face all sorts of dilemmas in a bid to save Stonetown.

The last book in the New York Times bestselling Mysterious Benedict Society series.