10 years after the frog invasion Terri and Mr, X go to Anne's House to tell her, Mr, and Mr's Boonchuy that Anne, Sasha, and Marcy could go back to Amphibia and come back what ever time they wanted to come back to earth. But it was a 1-time use only. So Anne, Sasha, and Marcy decided to go back to Amphibia.