Last Wake. Cedar Harbor Cozy Mysteries, #12

Cedar Harbor buried Tom Warren without a body-and thirteen years later, an invoice suggests the lake never had him. While preparing a Yacht Club history display, Emma Chandler finds Invoice 417, a false bill with unexplained payments and instructions to preserve the originals until the Friday before Tom's cruiser was found drifting empty. The respected businessman everyone mourned was blackmailing powerful men-and may have planned his own disappearance.
Emma follows the money through a waterfront development, reconstructs an off-the-books service launch, and discovers a search designed to look thorough without finding its subject. Every corrected record brings the case closer to home. Someone Emma trusts has known the hidden route for years and will do almost anything to keep Tom's last wake undisturbed. The final secret is not only whether Tom survived.
It is why the person Emma trusts most helped the truth disappear.