AustLit

'The quest for a WW2 Japanese submarine in a bottomless Papuan cavern could be the opportunity Rob Nash needs to rebuild his once glittering career in cave diving exploration. Since losing his wife in a controversial diving accident he’s been dumped by sponsors, shunned by friends, and has developed a secret terror of confined spaces. Nash soon learns the price of redemption will consume every molecule of his self-belief. Not only must he battle his demons in the darkness below but vanquish fanatical terrorists hell-bent on unleashing a monstrous weapon lost in the depths for over seventy years.'

Source: Publisher's blurb.