The Dragons of Blueland

In this third and final installment of the classic My Father's Dragon trilogy, Boris, the baby dragon, is excited to be heading home to Blueland and looks forward to reuniting with his family.
Boris the dragon contacts Elmer shortly after the events in Elmer and the Dragon to ask Elmer's help: several men have found his family of dragons and are proposing to sell them to zoos and circuses. Elmer runs away from home again and helps Boris's family to scare off the men permanently.