Death at the Deep Dive: Secrets and Scrabble, Book 7 (Unabridged‪)‬

We only see the things on the surface….

When Pirate Cove's favorite—and only—mystery bookshop 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 murder.