On their eighth weekend, a heavy storm rolled in earlier than forecast.

Walter had been preparing to move the last bicycles out of the service tunnel, where he had stored them behind a dry maintenance wall.

The city had warned that high water could undermine the eastern side.

Toby and Gavin arrived at dusk with a borrowed handcart.

They expected to finish in an hour.

Instead, they found Walter trying to lift the final metal shelving unit alone.

The floor near the wall had begun to crack.