Madrona Island: Where Mystery Meets MagicThe Hollow is a magical place where the cats of Madrona Island have lived since before the island was developed. When Cait's witch friend Tansy alerts her to the fact that the cats are leaving the hollow for no apparent reason, Cait sets out to investigate. During the course of her investigation she finds a startling irregularity that is not only causing the cats to leave but is responsible for a human death as well.