Diane Duane

Based on the Germanic myth "Das Nibelungenlied" and the Nordic "Volsunga Saga" which also inspired the four-opera cycle by Richard Wagner. The blacksmith Siegfried meets the Queen of Island Brunhild in the crater of a fallen meteoroid and defeats her in an ax battle. They fall in love for each other and Kriemhild promises to wait for him in her kingdom. (imdb.com)

Elina is a flower fairy who discovers that her home of Magic Meadow has been overcome by a horrible malady that is killing the flowers and making the fairies unable to fly. With the help of Bibble, a puffball and a giant butterfly named Hue she attempts to find Azura, a Guardian Fairy. She's challenged along the way by the evil Laverna who wants to usurp the Enchantress, the ruler of Fairytopia. (imdb)

Richie, Ralph, The Fonz and his dog Mr. Cool meet a time traveler named Cupcake and accidentally get stuck in her time machine. The group has various adventures in different times and places as they try in vain to return to 1957.