ISBN: 0340569824.
Paperback.
96 pages.
Revised edition.
Clean and unmarked.
Very good condition.

ISBN: 034070392X.
3rd book in Secret Seven series.
Octavo.
Maroon cloth-covered boards.
Gilt lettering on spine.
121 pages.
This edition published to celebrate the centenary of Enid Blyton's birth.
Light wear to top edge of dustwrapper.
Covers and contents unmarked.
Pages beginning to tan.
Very good condition with dust-wrapper.

ISBN: 9780340680933.
3rd book in Secret Seven series.
Paperback.
Very good condition.