It’s useless to pedal. The current is too powerful for me to break free. Wherever it’s taking me, I’m now at its mercy. I pass beyond Skeleton Reef, back into open water. In the distance, across a long stretch of rolling sand, I see the shadow of a tall tower. A powerful beam of light shines from the top of the tower. It’s the undersea lighthouse. As we near the tower, the current speeds up, and I’m pulled into the darkness as it yanks me down into a tunnel below the sandy floor. Then, just as abruptly, I feel myself being tugged upward. At last there is a lurching jolt and my submarine comes to rest. I’m bobbing in the water. Half my window is light and half is dark. I lift open the hatch, scarcely believing what I’m seeing. The sub is floating above the water. I’m inside the tower, in a wide circular pool at the center of a huge stone room. Tall gray walls of stone rise up, forming a cold cylindrical prison. I jump out of the hatch and splash down in the water. A moment later, Swish pops his head up right next to me.
