Matilda investigates what appears to be a robbery with clues reminiscent of her own mother’s disappearance — and then Aunt Jane finds a body and the case becomes a murder. But as Matilda searches for the identity of the killer, there are other parties, much closer to home, who’d prefer Matilda not to disturb too many secrets.

• Julian Unthank

• Julie Graham
• Martin Trenaman
• Olivia Vinall