Horse and Pony Books
PONIES IN SECRET
(WARD LOCK 1955)
ILLUSTRATED BY MAURICE TULLOCH (Colour plates)
SUMMARY: Traditional pony/holiday adventure story. When the three Hartley children set off on a riding holiday in Kent, they embark on a series of exciting adventures...
Not a common title, although can be found in the UK without too much bother. Hard to fin with dustjacket, however. The odd copy may also be found in the USA and Australia.