Mortal Shell II — How to Get Sariel, the Endless (Silent Steps Repeat Fight)

Published 2026-09-174 min read

Sariel, the Endless packs a Shell, a weapon and a sidearm into one repeat boss fight at The Silent Steps in Mortal Shell II. Here is how the three-kill line works, how to break his resurrection, and where the Caged Hystrix waits.

Sariel, the Endless is the most generous boss in Mortal Shell II — because he keeps coming back, and every rematch pays. One boss line at The Silent Steps yields three rewards: the Sariel Shell, the Clockwork Scythe primary weapon, and the Caged Hystrix sidearm.

Sariel, the Endless wielding his scythe at The Silent Steps
Sariel's long-reach scythe defines the fight — stay off his frontal arc.

How the unlock line works

  1. Fast travel to The Silent Steps Beacon and walk to the large stone platform where the mini-boss waits.
  2. Defeat Sariel the first time. He will not die properly — he flees through a wall that opens onto the Chamber of Becoming dungeon.
  3. Chase him through the dungeon and fight him again.
  4. In the final room, destroy the four grave markers that fuel his resurrections, then finish him for good. The Sariel Shell and Clockwork Scythe unlock on the spot.
  5. Before leaving, climb the stairs at the back of the room — the Caged Hystrix sidearm sits near the dungeon exit.

Fight notes: respect the reach

Sariel wields a scythe with absurd horizontal range, and most of his damage comes from sweeping arcs that punish frontal positioning. Two habits carry the whole line:

  • Never stand in front. Circle to his sides and back; his swings cover a wide arc but his tracking is poor once committed.
  • Save healing for the grave-marker room. The final phase pairs the boss with four objects to break, and entering it wounded turns a routine finish into a loop.

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