Sarah and Julia love to visit their Grandmother for their weekly story time. This week Grandma tells the story of a newspaper editor who, in 1846 Portland, Maine, was informed of a real singing mouse. After much consideration, he decides to investigate. On the first visit to the man who owns the mouse, the editor is disappointed because the mouse does nothing. The owner convinces the editor to return for a second visit, insisting the mouse will sing then. On the second visit, the editor will find out if the mouse can sing or if it's just a hoax. This is based on a true story.