Slaughtered the Sand in Bloomington, MN

Wren's fourth and final writing assignment: a haunted campground near a Florida beach.
Wren and Rascal, her protective Labrador Retriever, arrive at a nearly abandoned, neglected campground. Wren discovers clues to a cold case in old letters. Are the new murders related?
The ghostly pirate Captain warns Wren of danger; the killer plans Wren's untimely demise.
How's it going with Justin, the Arizona town Marshal?
"This relationship stuff is hard..." Wren