Sierra's Dragons weren't always Dragon/Mouse Hybrids, they were once all Marsian Mice Knights of the highest Caliber and Shad was once only married two years and six months when he was captured and forcefully and painfully fused with his crystalline dragon. While Sierra is taking care of a very sick Shadow who is running a dangerously high fever, Micha and a few others have been researching how to undo the fusion. This story takes place four years BEFORE Sierra and Rimfire tie the knot and Sierra finds out she's expecting their first set of twins.