Soulmates found one story at a time.

Mush is a golden dragon with hind legs like an eagle’s, and front limbs like lion’s. He has a long neck and tail, a horned head, and a crest.

Marduk stole the dragon from Tishpak, and when he lost power, Nabu inherited Mush. He was too distracted to care about the dragon, so Norrix stole Mush away.

Mush now guards the vault in Ashana. Except for the fact that he followed Norrix and Zeke through the portal to their world, and disappeared.