The Shroud is the mystical barrier that separates the Underworld from the Skinlands (akin to the gauntlet). The Shroud makes the Shadowlands imperceptible to most living creatures and obscures Skinlands activity to the dead. In Orpheus, it is shown that the Sixth Great Maelstrom caused the Shroud to thicken and twist into the Stormwall. This was due to efforts by grandmother awakened by the spirit nuke detonations and resulting maelstrom.