Book, line and sinker / Jenn McKinlay.

Enhanced descriptions from Syndetics:

THE NEW YORK TIMES BESTSELLING LIBRARY LOVER'S MYSTERY FROM THE AUTHOR OF DUE OR DIE

"Avast" in pirate speak means what?*

Answering tricky reference questions like this one provides plenty of excitement for library director Lindsey Norris. But when a shocking murder is committed in her cozy coastal town of Briar Creek, Connecticut, the question of who did it must be answered before an innocent man gets the book thrown at him...

Lindsey is enjoying her second year in Briar Creek as the library director, meeting with the crafternoon club, and happily dating tour boat captain Mike Sullivan. But when a salvage company arrives in town to dig up treasure buried on Pirate Island over three hundred years ago, the locals are torn between protecting the island and welcoming the publicity.

In spite of the squabbling, Charlie Peyton, Lindsey's downstairs neighbor, takes a job with the salvage company. But when Trudi Hargrave, the local tourism director who hired the company, is found murdered at the excavation site, Charlie becomes the chief suspect. To help him, Lindsey must do some digging of her own before the real killer buries the truth for good...

* stop