Mr. Ferber is an old man living in Pendragon Castle along with his two grandchildren Bobby and Paddy who find a small dragon to heat their castle. The dragon helps them to find hidden treasure in the castle.
Netscher and Rennie, the grandchildren of impoverished peer Leslie, find a sea dragon and use it to heat their drafty castle with the fire and smoke it breathes. Even kids will have a hard time accepting this amateurish offering.