Holy Island (DCI Ryan Mysteries #1)
L.J. Ross

When former local girl Dr Anna Taylor arrives back on the island as a police consultant, old memories swim to the surface making her confront her difficult past. She and Ryan struggle to work together to hunt a killer who hides in plain sight, while pagan ritual and small-town politics muddy the waters of their investigation.
Murder and mystery are peppered with a sprinkling of romance and humour in this fast-paced crime whodunit set on the spectacular Northumbrian island of Lindisfarne, cut off from the mainland by a tidal causeway.