Mortal Shell II — The Ending Area Beacons: Monks' Court & the Obsidian Vault

Published 2026-09-173 min read

The third branch of Mortal Shell II's endgame chain runs through the monks' court Beacon to the obsidian vault — and the Monolith boss guarding the final severance. Full route and the punishing-fight warning.

Two branches severed. The road back to the corrupted Beacon now opens the left-hand cave — the Forgetting Chamber's deeper half — for the third and last arc before the endgame's heart.

The obsidian vault of the endgame region
One court, one vault, one brutal monolith between you and the final branch.

The third arc

  1. Return to the Forgetting Chamber cave and exit to the right, riding the air-current device to the upper platform and its portal crossing.
  2. Run the passage to the wide court and cleanse the monks' court Beacon on its right side.
  3. Clear its shrine of enemies and deliver the Ova as before.
  4. Continue the linear road — there are no forks here — through the root-tangled hall to the obsidian vault Beacon. Cleanse it, trigger the great door, and clear the Residue shrine.
  5. Fight the Monolith. The game's most infamous stat-check: enormous health, enormous damage, and an omnidirectional laser phase. Bring your strongest comfort build — heavy sustain like the Unwieldly Stone's lifesteal or a dodge-first loadout — and win through attrition, not flash.
  6. Sever the third branch. The corrupted Beacon is now fully unsealed.

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