The second children’s murder mystery from number-one-bestselling author of The Appeal, Janice Hallett, perfect for fans of Robin Stevens and Rhian Tracey. Imagine an old museum with more secrets than anyone could ever guess. A school trip that ends in murder.

A crime unsolved for decades. . .

But who did it?Now, Ava and Luke are on the case, following the clues left in a new box of murders. Using School workbooks, museum records, secret recordings and letters the siblings start to unravel the mystery of a body in the basement. But can they discover what really happened .

. . before the killer strikes again? YOU know the facts.