While on a school trip to Wales Peter, who has been deemed dragon kin by the dragons in Scotland, comes across a red Welsh dragon who desperately needs his help. She is being hunted by a witch’s evil flying gargoyles who are searching for the very special dragon which has been given into her care. Peter is asked to hide the little dragon away when he returns home.
Peter and his sidekick, the ex-bully boy, Biffy have to somehow keep one step in front of the witch, particularly as her flying gargoyles can kill humans with just a touch of their poisonous talons.
Their journey takes them once again to the magical Isle of Harris in the Outer Hebrides where they join forces with McDragon and the other Scottish Dragons. In trying to protect tiny McFinnia they have to ensure they do not come across their old foe, the evil wizard McMuran.
Peter must also consider whether anything can be done about the new bully boy gang when he returns to school.