Fan Casting Flurry Heart's Story: Let My Ponies Go!

Flurry and her friends get a chance to vacation in Southern Equestria with Spike, Rainbow Dash, Applejack, and Mrs. Cake. After meeting Somnambula, they are immediately thrown into adventure and peril when she finds a map that leads them to a cave in the desert mountains. Inside is an ancient temple where Somnambula is to meet an "old friend" as the map describes. What they don't know is this temple is booby-trapped and this mysterious correspondent is not here to be Somnambula's friend at all...