Rebecca Riddle seems to be your typical human-turned-pegasus in a world of both humans and ponies, but she has a secret double life, and there is nothing typical about her other life.
It's Nightmare Night and Skellinor, Ponyville's only resident skeleton pony, is the talk of the town in her princess costume. But why is she wearing Grogar's bewitching bell?
Spike is no longer the chubby baby dragon he was, and he no longer has to go through his hundred-year wyrm sleep. But as he and Twilight move back to Canterlot, Spike finds that his new larger body means the end of his old life.