Nelson, London, 1964, illus Drake Brookshaw
Set in Cornwall, Alex and Beryl of Menace on the Moor are on holiday again, where they meet ponies, sailing and smuggling.
Menace on the Moor series
Menace on the Moor
Mystery at Merridown Mill
The Riddle of the Tired Pony
Many thanks to Amanda Dolby for the picture.
Marjorie Mary Oliver