Ronald Spencer

Seal Island

The Copter Kids

Smokey Joe's Revenge

The Behaviour Game

Double, Double-cross

Trapped in the Tombs

The Runaway Truck

Sharp-shooters of the Desert

African Landfall

The Sandstorm

The Deserted Village

Project Z

Espionage

A Child's Guide to Blowing Up a Motor Car

Danger Within

The Whole Truth

Room at the Top

The Man Upstairs

Next to No Time

The Long Haul

To the Four Corners

A Hill in Korea

Footsteps in the Fog

The End of the Road

The Young Detectives