Besides the hole which was the entrance to the tunnel it was discovered that the vessel rested on a brick foundation.

The man who had used her for a saloon and dancing platform in years past had dug away part of the bank of the canal to fit the curve of her starboard side and had then jammed her tight into the land.

Even then she would move a trifle at times, so he had built a dam around her, pumped the water out of the inclosed space, jacked the hulk up, built the brick foundation, and let her down solidly on it again.
With the dam removed the water covered this masonry work, and she looked quite like a real ship.

Mr.Goldberg had known about this foundation, but he had forgotten it, he explained to Cleggett.
The Rev.Mr.Calthrop fitted her out as a floating chapel and filled her with Bibles printed in all languages, which he distributes in many lands.

When his fatal attractiveness for women threatens to involve him in trouble he hastily puts to sea.