[ZodWallop]

Salvage by Duncan Ralston is $0.99 at Amazon US.

Thirty years ago, the town of Peace Falls was flooded to build a hydroelectric dam. To this day, its ruins remain below the surface of Chapel Lake--including the church, miraculously undamaged after all these years, its steeple visible above the water.

Suspecting foul play, Owen follows in his sister's footsteps to the cabin she'd rented on the water, and diving the ruins of the town beneath the water. Soon he's caught up in a decades-old mystery of the religious mania that divided the town in the late-'70s, and the sudden disappearance of Reverend Crouch and several of his parishioners--a mystery the citizens of Chapel Lake had hoped would stay submerged beneath the water, in the ghost town below.