Applejack finds a strange visitor in her apple orchard one day, with even stranger stories to tell...
MLP/L4D2 crossover. My first story on FiMfiction.net! May add more tags as story progresses.
Credit for the image goes to brokencreation on DeviantArt.

Dante, Trish, and Lady end up in Equestria after a freak accident with cultist. Now not only do they have to learn how to adapt to their new forms but also save Ponyville, Canterlot, and all of Equestria from a group of demon cultist who are trying to resurrect a god.