Princess Celestia Finds a major breech in security in the royal castle that may mean that someone is coming after them. To find out who, Luna searches the Multiverse for someone with the detection skill necessary to get the job done and save the Royal sisters.

F.O.4 Crossover

Teen for swearing.

(after three years of writing on this site, and over 15 stories, this becomes my first "popular" story, i have no idea what to say but, thank you. From the bottom of my heart.)

(we did it)

(Made popular list 2/4/2016.)

(lets see if it make featured.)