This new book just released is an excellent read
Philip Finch, Hb, 310pp
A true story of death and survival in the world's most dangerous sport, cave diving. Two friends plunge 900 ft deep into a water-filled crater in the Kalahari Desert to raise the body of a diver who had perished there a decade before. Only one returns. Unquenchable heroism and complex human relationships amid the perils of extreme sport
£16.99 +p&P
more details on the store page or my website
http://www.moorebooks.co.uk/shelves/cart.php?target=product&product_id=18850&category_id=249