Pigs Don't Fly Series by Mary Brown

Thing is a young girl who hides beneath a mask. Her companions include a crow, a toad, a goldfish, and a kitten, each in some way handicapped. Never has there been a more unlikely band of unheroic heroes. Yet each needs the other to discover what they all seek -- the Dragon of the Black Mountain, who can restore them to health and happiness.

Left an orphan with a small dowry and a magic ring, all Summer wanted was to find a husband and settle down. But she hadn't reconed on the raggle-tail assortment of creatures who needed her help, even if the amnesiac, blind kinght was the handsomest man she had ever seen....

Learning that the man she had thought she loved is not a man at all but a dragon, Summer is devastated when the dragon flies away, and she embarks on a challenging and dangerous quest to find him.

Thing was a young girl who hid beneath a mask. Her companions included a crow, a toad, a goldfish, and a kitten. Never had a more unlikely band of unheroic heroes set off on a difficult and dangerous quest. But Thing had a ring with unusual powers.

A young orphan in Victorian London, Sophie will receive a substantial legacy from her late uncle if she can successfully return a dragon's egg to an uncharted region of Asia, and armed only with a magical ring, a mysterious unicorn figure, and a telepathic cat, Sophie braves untold perils on her que