This story is a sequel to From Beyond the Western Gate

Asteroth, Lord of the Red Dragon, one of the most revered among the "Kingdom of Anaheim," had also suffered blows with heroes. His fight with Borg and five denizens from Puck World have resulted in the losing of his pendant, rendering him unable to reveal his true self.

Now the Council of the Red Dragon have send him on a two part quest; the first being to recover the Helmet of Set. Taking the Homonculus Balthar with him, Asteroth arrives in their world, eager to become whole again. Unfortunately, such a world has an element that he has not accounted for.

...

The Third of the Other Visits Saga. In this case, "The Mighty Ducks" animated series (between "Dungeons and Ducks" and "The Return of Asteroth.")