Horizon View — Charles Bowen

After his parents died, Granite “Grant” Richardson drifts with the currents. Life turns for him when he's blackmailed and his younger sister drops into a coma. He returns to Lake Horizon where he discovers his sister's troubled history, an underwater conspiracy and more than one deep water phantom. Grant navigates rocky islands and tricky marina slips to discover a macabre terror cell and face the Horizon View.