Grey Mourner

The Grey Mourner is an NPC found in the east area of the Resting Grounds, and requires Desolate Dive or Descending Dark, as well as the player to find several breakable walls, to reach.

Solace Achievement
When spoken to, the Grey Mourner will talk about her dead lover (the daughter of the Traitor Lord), and request the player take a Delicate Flower to her grave, located in the Queen's Gardens. This flower will break if the player rides a Stagway or takes damage.

If the player succeeds in this quest, they will obtain a Mask Shard, making her quest required for 100% completion.

Past
The Grey Mourner is probably Ze'mer, one of the five Great Knights, due to the large nail in her home, and comments about serving under the Pale King when shown the King's Brand. Her profile also fits Ogrim's statues of the other Knights.

Dialogue
Upon meeting:

''Ahhhh.... Me'hon. This world. This cruel, sinful world. Why does che' wake? Why does che' persist?''

Ahhh Le'mer, you could not know of tragedy as complete as che's, true lovers stripped apart, two worlds that could not meet.

''And now meled'lover, dead so long in time. Dead, so far away. Buried, moina? Ai. Amongst its hateful kin that did deny our union, that did reject che's... outside-ness.''

''She doesn't suppose?... Nahlo, Nahlo. Could che' ask? Could che' burden?''

Le'mer, woulds't you, coulds't you deliver gift to her grave?

''The gift is, maybe small? But the trek is long. She rests amongst her kind near our Queen's lush refuge.''

''Would such a thing be done? Che' asks perhaps impossible things? Mad things? For Le'mer to take up such quest would be a kindness che' has near forgotten.''

When shown the King's Brand:

''Le'mer, takes that heavy mantle...Che' wouldn't wish it upon one. Having served that brand at it's great height, che' knows well what suffering it brings. Enough to turn nym'King to flee or fair Knights to mourning.''

Dream Nail:

''Ulll... Nemenoo... Nails and claws... Why must it be so?''