This story is a sequel to Vampire Night II
The day after Applejack's ordeal Rarity awakens in Limbo and meets a surprising Grim Reaper with an even more surprising offer.
Meanwhile Pinkie learns of Rarity's death and is destroyed by it. But when her reflection offers to help, will it be the kind of help she wants? Or will it be the kind that destroys everything she cherishes?
Cover can be found at source. Posted without permission, if the artist wants me to take it down, just let me know and I'll do it.
Rating warning: There is more blood in this one than in the prequel. It's not much more, but just a head's up.