A Haunted Invitation — J.A. Whiting

This is book 5 in the Lin Coffin series. Although the main mystery is solved in each story, the books should be read in order for the most enjoyment as story lines run from book to book. Lin Coffin has been hired to landscape the front garden of an old Nantucket mansion. The owner of the home complains that workers are making noise late at night just outside her window, but no one else ever sees these men. While Lin and her cousin, Viv, with the help of several others, work to solve the mystery of the strange late-night disturbances, a ghost appears and asks Lin for her help. This story has ghosts and some mild paranormal elements.