Hotshot Puzzles
Sue Arengo
Paperback
(Oxford University Press, Feb. 11, 1999)
'Paul waited for fifteen minutes, but Becky did not come back. He went down the tunnel after her.' Paul and Becky are on holiday in Wales, and one day they go on a treasure hunt in the hills. 'Not very exciting,' thinks Becky. But then they find some very strange and dangerous places - and come home with some real treasure.