Raven's Slumber contains some sort of pocket dimension that can be used to store a living creature indefinitely. This dimension takes the form of a twenty-square-foot stone room with a throne in the center. On one of the walls is a rectangular window through which the creature contained within can view the outside world from the perspective of the amulet.[citation needed] If a creature is willing, they can be placed within Raven's Slumber immediately. If they are unwilling, they must succeed a Wisdom saving throw to resist being placed inside.