Defeating Tricepalos earns you the Blade of Night Fragment key item. Give it to the Guardian once you return to Rountable Hold, and complete the Remembrance. You get the Small Makeup Brush as a reward, a blue relic that gives the Revenant a power boost when her summoned spirits are on the field and increases Rune acquisition for the entire team.

Looking to get the most out of the spectral summoner? Check out our guide on the best Revenant build in Elden Ring Nightreign.

For the beginning of the Duchess' Remembrance, you need to first help a concerned Raider: Speak to the Raider in the main Expedition room of the Roundtable Hold. Speak to the Wylder in the small room adjacent to the journal room. Go back to the Raider and talk to him again.