After all, the spell he put in Zelma could destroy her: if Loki finds out where the spell is, he could try to remove it, which would most likely tear her soul apart. Loki also kills his talking dog, so there's that big thing.
So he goes to the person he saved, that he promised he would never ask for help again - and hopes against hope that they'll take up Doctor Strange's cause as their own.
This is about ghosts in a building that's under Queens - but shouldn't be. Doctor Strange, and his apprentice Zelma, have to go, find what it is, and how to stop it, all without getting themselves killed.
I love the banter between Zelma and Strange, and I love how they manage to wrap things up, and how Zelma encourages Strange to go on more adventures.
But, agreed Strange - you deserve a nap.