Product Description
"In a remote quarry near their homes, Patti and Simon shelter from a summer storm. A bolt of lightning erupts at their feet and afterwards they find the Touchstone, 'white in color with a green vein, about the size of a large apple', which is to be their password to another world."
Larger format first paperback, published by Children's Press, the author's debut novel for younger readership.
Previous owner's name to title page, tanning to pages.