Arianna, Woman of Pleasure — Bloodborne

Quest overview

Keep Arianna safe at the chapel until Micolash to obtain her cord.

• Defeat at least one of these bosses: the Witch of Hemwick, the Blood-starved Beast or Vicar Amelia.
• Know Oedon Chapel as a refuge.

• Direct her there before the blood moon; her door will no longer answer afterwards.
• The clinic ends this quest route.
• Accepting her blood three times after Adella arrives causes her murder.
• Do not send the Beggar to the chapel.

Choose Oedon Chapel

Cathedral Ward · alley near the circular plaza

Evening or night, before the blood moon

• Speak at Arianna's door after defeating one of the three required bosses.
• Direct her to Oedon Chapel, then reload the area.
• Return to the chapel and speak to her.

Arianna is seated at the chapel; Curtsey gesture.

Receive her blood without provoking Adella

Oedon Chapel

Evening or night

• Carry no vial of Blood of Arianna, Adella or Adeline to accept the gift.
• After using it and reloading the area, you can receive another gift.
• If Adella is present, do not request a third donation after her arrival.

Vial of Blood of Arianna; she stops giving it at the blood moon.

The jealousy counter starts when Adella arrives. The third donation triggers the murder the next time the area loads.

Follow the trail of blood

Oedon Chapel · basement beneath the library

After Micolash

• After the blood moon and The One Reborn, continue until you defeat Micolash.
• Return to the chapel: Arianna has left her seat.
• Follow the traces towards the rear door, then climb down the ladder in the basement library.

Arianna and a pink celestial creature are in the lower room.

Collect the One Third of Umbilical Cord

Oedon Chapel · lower room

After finding Arianna and the creature

• Kill the small pink celestial creature to obtain the cord.

1 One Third of Umbilical Cord.

The normal progression described by the wiki also causes Arianna's death.