Blade of the Darkmoon (item)

- The pendant is received from Company Captain Yorshka upon joining the Blade of the Darkmoon covenant in Irithyll of the Boreal Valley. - From the Anor Londo bonfire, proceed to the spiraling staircase (it must remain in its topmost position), go downstairs and exit by the lowermost part. A prison tower will be visible in the distance and to the right. - Walk straight forward into the void, revealing the existence of an invisible bridge that leads to the tower. Captain Yorshka can be found here, and the player may join her covenant if they have the "Darkmoon Loyalty" gesture. By performing the gesture for Yorshka within her dialogue menu, the player may receive the covenant item as proof of joining the covenant.

Fonte: https://darksouls.fandom.com/wiki/Blade_of_the_Darkmoon_(item) (Fandom, CC BY-SA 3.0)