Wizard At Large by Terry Brooks is the third novel of the Magic Kingdom of Landover series, following The Black Unicorn.

Written in 1988, the plot has Abernathy accidentally transported to Earth by one of Questor's ill-conceived spells, while a demonic imp is unleashed upon the kingdom of Landover.

The bottle is stolen by the G'home Gnomes Filip and Sot, and Ben gives chase along with Questor, Willow, and Bunion.

Knowing that only the High Lord can defeat Nightshade, Questor decides to try to convince the dragon Strabo to fly him through the fairy mists to Earth.

They arrive at the last moment to rescue Ben and his friends from the police station and fly them back to Landover, but not before Questor uses his magic to restore Ard Rhi's conscience and convince him to give away his vast estate.