Into the Abyss, the first volume in The Diving Trilogy, is a fascinating collection of true life diving adventures from Rod's long and varied diving career. It follows his progression from novice diver in the 1980s through the dangers of the deep air diving era and on to trimix diving in the 1990s where divers began to use commercial mixed breathing gases as the sport of technical diving was born. This opened up vast, previously inaccessible,...