Summary[]
In this revision of "The Pied Piper of Hamlin," the Earth people become involved with a Giant politician and his contract with a mysterious fantastic Piper who is planning to kidnap his son because of an unpaid debt.
A mysterious flute player lures Dan, Valerie, Betty and Fitzhugh into a cage with his mesmerizing music. The man claims to be not only the fabled Pied Piper of Hamelin, but also a being capable of traveling between worlds and changing his size and appearance. The Piper takes the captured humans to a giant Senator, but the politician refuses to pay him for the capture. As revenge, the Piper tries to lure the Senator's young son away. Mark devises a way to cancel out the Piper's music by recording the music and playing it backwards. The Piper comes up with another scheme, and reduced to the size of the humans, he offers Fitzhugh a ride back to Earth if he disables the tape recorder.