"Larry, H. I." . . . . . . . . . "Fiction" . "Electronic books" . "Zac Power is searching deep underwater for a missing GIB agent. Can Zac find him in the mysterious Black Triangle before it's too late?" . "Shipwreck"@en . "Shipwreck" . . . . "Zac is sent to the Black Triangle in search of a missing GIB agent. This mysterious patch of ocean is full of shipwrecks. Can Zac find the missing agent in time, or will the Black Triangle claim him as its newest victim? Age 6+." . "Zac is sent to the Black Triangle in search of a missing GIB agent. This mysterious patch of ocean is full of shipwrecks. Can Zac find the missing agent in time, or will the Black Triangle claim him as its newest victim?" . . . . . . . . "Juvenile works" . "Power, Zac (Fictitious character)" . . . . "Power, Zac (Fictitious character) Juvenile fiction." . .