The Books And Branches Library is getting crowded now that Twilight Sparkle, Spike, Owloysious, Peewee, Nyx and Skitterskee are all living there. Twilight faces exhaustion as she tries to manage this crazy household along with the library itself and her research for the princess. And that changeling, Skitterskee. . . It seems like a pathetic creature, but it might be more devious than anypony thought.