Lyra; that silly human-obsessed unicorn, and Bon-Bon; the more sane member of the duo, hear of a rumor that an abandoned carriage storage base was said to have only one carriage that lay there. Rumors have it that nopony is able to remove the carriage due to its "haunted" nature. However, Lyra, being the overly-dramatic skeptic, tries to find out if this "haunted" carriage was real or not... and Bon-Bon's there to stop whatever insanity Lyra is going to ensue... or at the very least attempt to.
Huh, that's actually pretty clever. Good work Bon-Bon.