This spell allows the caster to manipulate his victim's memories of an event that occurred in the last Power hours. For 20 minutes, the victim forgets to perform a task specified by the caster and related to the event in question (for example, alerting the guards). If he is reminded of the task by anything or anyone, the spell immediately falls off him.
The victim may make a WillPower roll. If he succeeds according to the Power of the spell, it is not manipulated.