A body in the harbour. A yacht full of secrets. And a race against the tide to find the truth. With her ice cream shop thriving, Lily feels at home in the close-knit Isles of Scilly. And now that she’s uncovered the shop’s true owner, she hopes the long-held mystery of her unconventional childhood will soon be solved. But when her friendship with the charming PC Grainger hits troubled waters, she has little time to dwell—especially after a customer is found floating lifeless in the harbour. Determined to uncover the truth, Lily turns her attention to the victim’s travel companions—longtime friends and co-owners of a luxury motor yacht. But the closer she gets, the more secrets she unearths. Was the death truly an accident, or is there something more sinister at play? With the suspects preparing to sail away and her trusted ally absent from her side, Lily must decide—can she crack the case alone, or will she set aside her pride and seek PC Grainger’s help before the killer leaves with the tide?