From book cover:

Furtively, Belinda climbed into the back of the van and began to search. Shotgun, cartridges - all the evidence they needed was here. She was about to clamber out again, when suddenly the engine started. The van roared off down the road with Belinda trapped helplessly inside...

Who is trying to frighten an elderly couple out of their cottage in the woods? And why don't Mr and Mrs Benson go to the police? When The Mystery Club starts to investigate, they find themselves up against burglars, blackmail - and ghosts!