A CASTLE FOR CASTLE THISTLEWART is one of 5 books in a series for children called "Still-Make Believing!" featuring the imaginary adventures of T. J., Katie, Granny Rose and their friends who in this story include Heartburn, the dragon. Heartburn lovingly endears himself to the residents of the the kingdom of Thistlewart Downs, helps them rebuild their castle and becomes its furnace. The castle becomes "forever home" where he blesses its residents with his warmth and love.