What does the author say about the old lady who disappears?

A young couple had been, they thought, towing a boat with their aunt inside. It turns out they were never towing their boat at all. George had tied their boat to the couple's line instead. When they arrived at the lock, the couple discovers they were towing the wrong boat. They also did not know where auntie could be,

"Oh, Henry, then WHERE is auntie?"

"Did they ever recover the old lady?" asked Harris.

George replied he did not know.

Thanks for your answer!!  Was a great help!!