One day in the Big Harbour, Theodore was taking a calming voyage around his home when he saw something unusual in a pile of weeds.

It was a small derby boat!

"Hello there," said Theodore. "I'm Theodore."

"Hello!" said the small boat. "I'm Mary."

"What brings you to the big Harbour?" Theodore asked politely.

"I'm looking for my cousin Dorothy." Said Mary.

"I know Dorothy!" Gasped Theodore. "I'll take you to her."

"Will you? Oh, thank you!" Mary exclaimed.

...

Soon, they arrived at the Big Harbour. Theodore had found out that Mary was coming to live with her cousin and she was very excited to see her again.

Presently, Theodore saw Dorothy up ahead talking to Foduck.

"Dorothy!" He called out. "Someone wants to see you!"

Dorothy was confused at first, but when she saw her cousin Mary, she squealed with happiness.

"Mary!"

"Dot!"

The two derby cousins were very happy to be together once more.