Book 4 in the New York Times bestselling series - perfect for curious readers!

'This book reminded me of some of the children’s books I grew up with, like Charlie and the Chocolate Factory and The Phantom Tollbooth*.'* RICK RIORDAN, author of the PERCY JACKSON series on book 1

'Like the Potter books, this story goes beyond mere adventure' BOOKLIST on book 1

After starring in three adventures, the inimitable quartet of Reynie, Sticky, Kate, and Constance haven't had a mission together in some time.

But with the arrival of a new Society member – and a new threat – they must reunite to face dilemmas more dangerous than ever before.

Including the return of the villainous Mr Curtain and his Ten Men, and a formidable enemy with a mystifying ability to track their every move ...

• Book 4 in the New York Times bestselling adventure series – ideal for children aged 10 and up


• Join a group of smart and resourceful junior sleuths as they solve a series of page-turning puzzles and mysteries


• Perfect for fans of Robin Stevens's MURDER MOST UNLADYLIKE series


• Want to know how it all began? Check out the prequel to the series, THE EXTRAORDINARY EDUCATION OF NICHOLAS BENEDICT