The Hollow is a mirrored dungeon, at the −Z end of the world. It holds The Thimble and is guarded by The Hollow One.
Like every Worldseam dungeon it has branching paths, locked wings, keys, traps, puzzles, patrols, secret rooms and shortcuts you unlock. Doors and mechanisms are driven by the mod; there is no redstone to break, and the dungeon can't be broken into or out of.
Choose Normal, Hard or Seamless at the gate. Harder runs roll better loot.
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