This story is a sequel to In Want for a Wand

On his search for Twilight Sparkle, Darren Houndslayer discovers King Sombra's horn and unwittingly resurrects the tyrant. He soon wonders if it might be better to reform an evil king instead of killing him for good. Darren struggles to find his place as a former Death Knight in pony society - but he finds himself confronted with his past by a young colt who develops dark powers that are disturbingly alike to Sombra's...

4th installment of the Twilight Goes To Dalaran series.
Knowledge of World of Warcraft is not necessary to understand the story.
WARNING: Spoilers in the comments!

This story is a sequel to Dead Heart

Mara, age 24, has finally earned her Cutie Mark. And there is always a way to make things complicated.

After a portal experiment goes terribly wrong, Twilight finds herself on a strange world full of bipedal, magical creatures. She has no idea how to get back home. Maybe her new friends, a young Tauren and an Undead, can help her. They know of a magical city in the sky which might hold the answer to her problem. But can she really trust anybody in a world where true friendship is a rarity?

Knowledge of the Warcraft universe is not necessary to understand this story - but it might make reading it more fun.

This story is a sequel to Twilight Goes to Dalaran

Priest, the undead Forsaken, helped Twilight to get back home to Equestria - but now he is stuck in Ponyland! He has no idea how to handle this peaceful world full of cheery colors and friendship. On top of that, unsettling things start happening to him and rumors come up that there's a ghost haunting Ponyville...

2nd installment of the Twilight Goes to Dalaran series.
Knowledge of World of Warcraft is not necessary to understand the story.
Warning: Spoilers in the comments!

This story is a sequel to Twilight Goes to Dalaran

A tauren, an undead and an alicorn go into a tavern.

A short story about orcs, drinks and axes. Do not attempt this at home.
You don't need to know the game to follow the story but having read the prequel is strongly recommended.