Val Biro

The Secret Mountain

By Enid Blyton, Val Biro, Dudley Wynne

Gumdrop on the Rally

By Val Biro

Gumdrop Finds a Friend

By Val Biro

Gumdrop at the Zoo

By Val Biro

Bobby Brewster's Jigsaw Puzzle

By H.E. Todd, Val Biro

The Secret of Spiggy Holes

By Enid Blyton, Dudley Wynne, Val Biro

Gumdrop at Sea

By Val Biro