At the lake shore there was another rowboat drawn up.

The others went on ahead of him down to the lake shore where the logs were buried in the sand.

They had drifted up onto the beach and if nothing were done about them sooner or later the crew of the Magic would come along the shore in a rowboat, spot the logs, drive an iron spike with a ring on it into the end of each one and then tow them out into the lake to make a new boom.