The Dragon Riders

The Dragon Riders has arrived! How did the boys go from knowing absolutely nothing about dragons to having one for a pet? It's getting harder and harder to hide Elton John (they found the name on one of their grandparents' old records) under the covers of the bed - he's almost the size of a horse! And what to feed him? He seems to like everything toasted... Oh, and another thing the boys didn't know a thing about was a dragon's yearly ritual - to meet up with all the other dragons in the land. But why, oh why, did he have to bring the boys and their dog with him?