Doomraga's Revenge (Merlin, #7)

BASIL'S ENCOUNTER WITH EVIL...

No longer an unknown little lizard, Basil is now a powerful dragon. His majestic wings, gigantic tail, and jewel-bright eyes fill the sky as he and his loyal friend, Merlin, defend Avalon and strive to save their world. But Avalon is falling into chaos as battles erupt among the dwarves, the fire dragons, and the normally peaceful faeries. Basil suspects the troubles are all linked, but he must find out how. Unfortunately, the answer lies deep within the haunted marsh where Doomraga, a shadowy beast, plots his revenge.

"No one can compare to Barron when writing about Merlin or Avalon...His many fans will gobble up this new offering."
-School Library Journal