An Enid Blyton adventure about four young cousins on an island off the Dorset coast in England where a shipwreck attracts the attention of greedy men who might put our heroes in danger.
George
Julian
Anne
Dick
Luke Undown
Jim
Quentin Kirrin
Margaret Kirrin
Cmdr. Mainbridge
Jan
Captain Zachary (as Rufus Cruikshank)