Her summon sign is in the preparation room, near the furthest left statue, just before the boss.

Shira, Knight of Filianore - Can be summoned for the Darkeater Midir boss battle.

Can cast Lightning Arrow and use main weapon's Weapon Art.

Use Crucifix of the Mad King and Sacred Chime of Filianore.

After you defeat her, Shira's Set will be in the room where you talked to her initially.

Her armor would be at her resting place, the door would be automatically unlocked and opened. However, you will still get invaded and get the Crucifix of the Mad King, Sacred Chime of Filianore and a Titanite Slab x1 as a drop.

Note: If you happen to kill Midir before talking to her, her door would be locked.

She will invade your world and attack you even after Gael has been slain.

End: At Filianore's Rest bonfire, just after exiting the building, stick to the right wall soon you'll see a ruined building, go into the ruined building.

Speak to her after defeating Darkeater Midir to receive Titanite Slab.

She can then be summoned for the battle against Darkeater Midir, but will not appear if you entered the final area of the DLC, unless you return and tell her that Midir fell into the chasm.

Speak to her and accept her request to kill Darkeater Midir and she will give the Sacred Chime of Filianore. Then head up the stairs to speak with her. Head down the stairs and outside once more. Make your way outside until you come into another small building.

Start: The Ringed City: from the Ringed Inner Wall bonfire head down the small tower here and outside.

Doing her quest is NOT required since this route makes it impossible to complete. Defeating her yields you the Sacred Chime of Fillianore, Titanite Slab, and her Shira armour set which is found at her original location. She will now be found on the right of Fillianore's Rest.

If you talk to Shira, knock Midir off the bridge, then touch Fillianore without returning to Shira then Shira will leave her home.

At Filianore's Rest, where she is killable, will be hostile towards player.

Near staircase, where she is unkillable, will be neutral/friendly towards player.

Player may meet her near staircase with Harald Legion Knights and at the ruins at the Filianore's Rest.

Powerful knight of Filianore's, protecting her slumber.

Dark souls 3 midir