Mystery stories : The secret of Cliff Castle and Smuggler Ben
Blyton, Enid.
Blyton, Enid.Secret of Cliff Castle.
Blyton, Enid.Smuggler Ben.
London Armada
1982
Originally published: London : Collins, 1976. - The secret of Cliff Castle originally published: London : Laurie, 1947. - Smuggler Ben originally published : London : Laurie, 1943