Morgan's Plot is a small decrepit church with a graveyard and crypt located in Deadwind Pass. It can be found just behind Karazhan, and its graveyard serves as the respawn and spirit healer point for players who die within the actual Karazhan instance.
The chapel itself is inhabited by two Unliving Residents, and there is a third patrolling just down the hill. If you get attacked, running down into the area called Forgotten Crypt will save you. Lydia Accoste is found here.
The place is now inhabited by Restless Spirits.