Book 2 from The Mysteries of Whisper Bay series.
 
Sometimes the kitchen sink can get you in trouble.
 
Helene, Marta, Jimmy, Charles, and Violet put their best detective skills to use when they discover that the strange people seen around town and at the farm hold a bigger secret than they could have imagined. They are not who they say they are, and are up to no good.
 
With the help of a kitchen sink, a wandering cat, and God-given help to face down a big storm on the lake, the gang discovers that with incredible courage and creative thinking, they might get a new friend and change his life forever.