"But it was Mum!" Eric tells Lizzie. "I saw her..." At first, Lizzie thinks it's just one of her little brother's stories. Their mother's dead; there's no way she could be working in a museum gift shop. But what if Eric's right? If there's a mystery at the heart of Lizzie's family, she wants to solve it ... A gripping read from the acclaimed author of THE TRUTH ABOUT JOSIE GREEN and SECRETS, LIES AND MY SISTER KATE.