Swan Territory - The Horrors of Sobolton, #2

Many years ago, reclusive millionaire Wentworth Stone retreated from the world, seemingly unable to get over the death of his wife. Nobody has heard from him since... until the day he asks for help from Sobolton veterinarian Lisa Sondnes.

Heading out to Stone's remote home, Lisa discovers a flock of sick and diseased swans. Stone insists that his prized collection must be saved, but the more she tries to treat the birds, the more Lisa starts to wonder whether they might be hiding a strange secret. When she discovers a hidden cave on Stone's property, she soon realizes that her worst fears are about to come true.

Meanwhile, John investigates a mystery of his own, one that's clearly linked to a tragedy that occurred many years ago. Wentworth Stone's crumbling mansion hides a second secret, one that threatens to burst back into the world just as a ghostly little girl makes her second appearance. With pressure mounting, can John get any closer to discovering who killed the girl in the ice?

Swan Territory is the second book in the Horrors of Sobolton series, which tells the story of one small town's struggle to deal with the paranormal monstrosities on its doorstep. Each book tells a standalone story, but there are cliffhangers and readers are recommended to go through the series in order.