The Lone Piners head to the Yorkshire Moors where Harriet's grandfather is thinking of buying an antiques shop.  The old abandoned mineshaft on the property is attracting a lot of interest.  The Lone Piners find out why.

Newnes (1959)
Children's Book Club (1959)
Merlin (1968)
Collins (1972)
Armada (1979)
Goodchild (1986)

In Print

Published by John Goodchild.  ISBN: 0 86391 114 5
243 printed pages Hardback.  Abridged text.  RRP £7.25  More Details