So, the cover of Grave Descend with its fancy yacht and bikini girl immediately grabbed my attention. The praise lavished on it by Bookgasm puts it on my To Read list:
"...a wrecked yacht creates a mystery that attracts (thank God) all the wrong kinds of people, including our protagonist. If you want to study plotting 101, this is a book you should analyze for setting up a mystery that grows richer with each chapter."
" ...the hero is McGregor, a freelance diver hired to salvage secret cargo from the titular downed yacht, which he’s told went down mysteriously the day prior. Something doesn’t quite (add) up in McG’s mind, however, and when he does some sniffing around a few hours before an agreed-upon, pre-dive helicopter flyover, his suspicions are confirmed: The yacht hasn’t sunk at all.""John Lange," by the way, is Michael Crichton's old pen-name from the '70s, when this story was first published.