Sometimes the Dead enter the Mansus by the White Door. At its threshold they lay down their power of speech forever. Call them back to the world, and they will have no voice, but their skins of dust are yours to command.
The Voiceless Dead is a summon-able minion with a duration of 180 seconds. It requires at least 2 Knock, 2 Heart and 4 Winter to summon. When destroyed, the Voiceless Dead will leave behind A Chilly Atmosphere.
Speaking to Voiceless Dead with a Passion will give you the Lamp of Loss option, which will convert the Passion to a Decrepitude and provide you with the level 6 Moth lore, An Ecdysiast's Parable.