This spell enables the character to command undead creatures for a short period of time. The character commands the creatures by voice. Telepathic communication is not possible, but the creatures understand the character no matter what language the character speaks. Even if vocal communication is impossible (in the area of a silence spell, for instance), the controlled undead do not attack the character. At the end of the spell, the controlled undead revert to their normal behavior. Intelligent undead remember that the character controlled them.