Rainbow Dash visits Ponyville Library to buy the latest Daring Do issue but finds the library mostly empty. She encounters a mysterious pony dressed in black standing next to a stack of books. The mysterious pony vanishes, leaving her bewildered. Detective Pinkie Zinkie appears, revealing a sinister plot involving their friends. Rainbow embarks on a hunt to uncover which friend is the culprit.

Shout out's to Comeonideodic and Buck Swisher for proof reading my work