The Boneyard Kingdom is the land ruled by Death and Skeleton Princess, according to Adam Muto. Little is known about the kingdom as it only has a small appearance in the episode "Princess Monster Wife", In the episode, it shows Skeleton Princess lying on a bed within a room that seems to be inside of a tree. The room is filled with small candles (and possibly a candelabra).
Doctor Strange in The Multiverse o Madness - The Loop
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