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Believed to be stolen from a mortal mage by the name of Eochar, this ritual shields the user against possession by ghosts, infernal entities, or other spiritual powers. Rumors are that Eochar used this magic to protect himself and his students from the machinations of the dead. While this ritual is active, the necromancer’s body cannot be taken over, nor can his soul be pulled out of his flesh. Powers that command the mind (such as Dominate) are still effective. This ritual may be cast on others, but if done against their permission (such as to keep an enemy from activating Psychic Projection, Subsume the Spirit, or Possession), the ritualist must have a bit of the target’s hair, spend a Willpower, and make a successful Manipulation + Occult, while the subject rolls his Willpower in a resisted action (difficulty 7 for each). Once activated, Impregnable Soul remains until cancelled by the user, or until the next sunrise.