Sally Anne Marlowe

Blinker, so named because he blinks whenever he has a bright idea for a new invention, is the son of an eccentric Professor who is developing a top secret Pulsar Crystal X. Blinker's inventions help him to be a successful goalkeeper and to keep an eye on The Masons gang - and some real crooks.

Four children save money to buy a boat but are accused of boat stealing. When the boat is wrecked, they have to raise the wreck to prove their innocence.