Underwater Investigation Unit

"Coming from scandalous Florida treasure hunters and drug smugglers, Sloan McPherson is forging her own path, for herself and for her daughter, out from under her family's shadow. An auxiliary officer for Lauderdale Shores PD, she's the go-to diver for evidence recovery. Then Sloan finds a fresh kill floating in a canal--a woman whose murky history collides with Sloan's. Their troubling ties are making Sloan less a potential witness than a suspect....