Just Different Devils (Hetta Coffey Mystery #7)

Hetta Coffey is a sassy Texan with a snazzy yacht, and she's not afraid to use it—most of the time.
She's an intrepid cruiser, but wild rumors of marauding gangs of flesh-shredding giant Humboldt squid on a rampage in the Sea of Cortez could keep even Hetta tied to an expensive dock. However, when the opportunity for an intriguing and highly lucrative charter arises she talks her best friend, Jan, into signing on for a mysterious cruise.
Damn the calamari! Full bank account ahead!