Andy, Tom and the twins Jill and Mary get stranded when they are shipwrecked in the wild Scottish Islands.
When a trip at Little Island for the weekend ends in them being shipwrecked, it is at first exciting for the Adventurous Four. But imagine their surprise when they discover the hidden harbour is full of enemy submarines! They investigate more closely so as to get back to the mainland and expose this terrible enemy. But a forgotten camera leads to their capture. How can they outsmart the enemy and escape? And is there any way of getting off the island…?
The Adventurous Four is a series of two novels and one short story written by Enid Blyton. The stories revolve around twins Jill and Mary, their elder brother Tom and their fisher friend Andy. The characters are from World War II England while the stories were set in Scotland. The first book was published in 1941 during wartime.
