The Secret Seven and the hidden cave adventure.
By: Illus. by Tom Dunnington.
Contributors: Dunnington, Tom, illus.
Edition: American ed., rev. and edited by M. Hughes Miller.
Series: Her Secret Seven adventures
Publisher: Childrens Press
Published: 1972
Place of publication: Chicago
Language: eng
Number of pages: 121
Subjects: Mystery and detective stories.
Description: When they move their meeting place to a hidden cave, the Secret Seven stumble across evidence of a mailbag robbery.
Notes: First published in 1955 under title: Secret Seven win through.