Barrowmist

Cooldown: 60 - 75 hours, varies by skill
Syntax: cast 'barrowmist'

With the barrowmist working, a necromancer may summon forth dank, reeking mists to roll over an area, bringing with them the dark powers of undeath. All rooms in the area will be darkened by the fog, though mundane objects will yet be capable of illuminating them. While the mist is present, it will be difficult to destroy any corpses, as the necromantic powers imbue the dead flesh with unnatural strength.

When surrounded by the mists, corpses on the ground may rise again, returning to life -- or unlife -- as zombies. Similarly, shades in the area may be called back to the physical plane, manifesting as wights. These undead may then be controlled by the necromancer like any other. Holier shades are less likely to manifest as wights, though ultimately any may fall to the mist's dark power.

The undead returned by the barrowmist tend to be less aggressive than many of their more permanent counterparts, though they may yet strike at passersby. Additionally, the black magic which animates them is fleeting, and in time these undead will crumble into dust.