Hotel Caledonia (Black Ocean: Mercy for Hire, #7)

A murder mystery you can sink your ship into.

Esper has a rendezvous with a mysterious contact aboard an undersea luxury cruise ship, an exclusive submarine hotel for a cozy five-day getaway. She's going to get all the intel she needs to cut off the head of the Cult of Ra—at least that's the plan.

When she first meets her contact, it's at the scene of his murder.

Then someone sinks the cruise ship, trapping Esper and the other passengers with the killer.

Now, Esper has to discover the kille...