Book #6 in the Timber Creek K-9 Mystery Series:

A deluge floods the high ground near Hanging Falls, but heavy rains aren’t the only menace in Timber Creek. After Deputy Mattie Cobb and her K-9 Robo find a body floating at the edge of a lake, she delays her trip to meet long lost family. As a list of suspects grows, Mattie’s relatives visit, shedding light on her childhood abduction—but darkness threatens another victim before Mattie and Robo can track down the killers.