Call of the Hungry Dead takes only 10 minutes to cast and requires a hair from the target’s head. The ritual climaxes with the burning of that hair in the flame of a black candle, after which the victim becomes able to hear snatches of conversation from across the Shroud. If the target is not prepared, the voices come as a confusing welter of howls and unearthly demands; he is unable to make out anything intelligible, and may go briefly mad.