The Lone Piners head for the North 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) | Library copy available
|
| Children's Book Club (1959) | |
| Merlin (1968) | Library copy available
|
| Collins (1972) | Library copy available
|
| Armada (1979) | |
| Goodchild (1986) | Library copy available
|
In Print
Published by Goodchild. ISBN: 0 86391 114 5243 printed pages Hardback. Abridged text. RRP £7.25
