In this, their first adventure, the seven super-sleuths are on the trail of some very strange clues. Jack hears strange noises outside his house, and then he discovers a spooky old caravan. The Secret Seven are determined to find out what's going on, and their curiosity leads them, in disguise, through the snow, to an old house, and an exciting mystery ...

A young girl has run away from home, and now she's disappeared. The Secret Seven set out to help her but Jack's annoying little sister is doing her best to distract them from their mission. But when the Secret Seven have a plan and a job to do, nothing gets in their way.

"What would the Seven do without Scamper the spaniel? First his discovers an unwanted visitor -- then he protects the Seven as they spy on a thief late at night in Bramley Woods!"--Container.

The Secret Seven are outraged. A sinister looking man has landed George in trouble. The gang decide to spy on the stranger, they are convinced he's up to no good. But will they just make a bad situation worse?

The Seven's new hiding place is being used by an intruder.___

The Secret Seven are Peter and his sister Janet, Jack, Colin, George, Pam and Barbara. They meet every holiday in the shed at the bottom of Peter and Janet's garden - and solve mysteries, and eat lots of delicious food. But no one can enter the shed without whispering the secret password! There are 15 Secret Seven novels, and a collection of short stories. When a sinister-looking man gets George into trouble with the police, the Secret Seven are outraged....

When seven young friends attempt to help a family whose house burned down, they discover the family's plight is worse than they expected.