Sunset Shimmer and Rainbow Dash are dared to stay overnight in a haunted mansion. However, they quickly discover that the secrets held inside are worse than they could've ever imagined.
When Sunset Shimmer was turned back by the Elements of Harmony, some of her demonic power remained. Now, she has to deal with it before it consumes her.
Twilight is a human in a world of monsters, although she's never met one. So when she finds a vampire dying on her front lawn one day, she's not sure what she's found. A new friend? Or her demise...