Death at the Deep Dive An M M - Josh Lanyon

We only see the things on the surface. When Pirate Cove's favorite mystery bookstore owner and sometimes-amateur sleuth Ellery Page discovers a vintage diving collection bag full of antique gold coins tucked away for safe-keeping in the stockroom of the Crow's Nest, it sets off a series of increasingly dangerous events, culminating in Jack Carson trying to cook dinner. Er.culminating in murder.