The city of Dock has long been a quiet shadow of its former self, and nopony knows that better than Belle, Captain of the town guard. A steady decline in the fortunes of the once prosperous port town has led to a certain amount of boredom, and to be honest, she wouldn't have it any other way.

When disaster strikes the otherwise sleepy town, Belle finds herself hock deep in the middle of a mystery unlike any the city has ever experienced. Now she must rely on her wits, and the help of friends both old and new to stop the pandemonium that threatens to destroy her world.

(Takes place between "It's About Time" and "A Canterlot Wedding.")