[Daaave]

Something to read on your next cruise. Or you could read 'A Night to Remember' by Walter Lord.

**** (3.93) 22,366 ratings

The Wheel of Darkness by Douglas Preston (Goodreads Author) and Lincoln Child

At a remote monastery in Tibet, a rare and dangerous artifact mysteriously disappears. Aloysius Pendergast agrees to take up the search that leads him and Constance to the maiden voyage of the Britannia and to an Atlantic crossing fraught with terror.

[BlueLancer]

I have another suggestion, what I was reading on my last cruise. Also by Preston and Child, a stand-alone novel with a different take on the Oak Island Treasure Pit mystery:

IN 1695, a notorious English pirate buried his bounty in a maze of booby-trapped tunnels on an island off the coast of Maine. In three hundred years, no one has breached this cursed and rocky fortress. Now a treasure hunter and his high-tech, million-dollar recovery team embark on the perfect operation to unlock the labyrinth's mysteries. First the computers fail. The then crewmen begin to die. The island has guarded its secrets for centuries, and it isn't letting them go--without a fight.