Blue Eyes

Blue Eyes is a secondary quest in Act III of The Witcher, set in Vizima’s Trade Quarter. At the New Narakort inn the knight Patrick de Weyze tells Geralt that his sister was bitten by a vampire and then vanished. He describes her as a slim blonde with striking azure eyes and asks Geralt to find her.

She turns up as the blue-eyed girl at the House of the Night, the Trade Quarter brothel, insisting she has no family and is quite happy where she is. Patrick does not buy it and is convinced a vampire is pulling her strings. Upstairs Geralt meets the Lady of the Night and her sisters, who are vampires indeed, and now he has to decide who in this family drama, if anyone, deserves his sword.

Walkthrough

Talk to Patrick de Weyze at the New Narakort and agree to look for his sister.
Find the blue-eyed girl at the House of the Night brothel and report back; Patrick wants proof.
Get proof by spending the night with her (500 orens, or 300 with the House of the Night signet ring from Erkyn Blunt) or by giving her a sapphire from the Marketplace; her bite marks confirm who she is.
Get past the bodyguard on the stairs: show the signet ring, pay him 250 orens or some fisstech, or knock him out.
Talk to the Lady of the Night upstairs, then either fight the vampires or spend the night with them.
Decide whose side you are on (see consequences).

Quest Consequences & Choices

Kill the vampires for Patrick: Patrick pays nothing, and his sister, unhappy with the result, disappears from the game.
Spend the night, then side with Patrick: Patrick’s men storm in and help you kill the vampires; again no payment and the sister disappears.
Spend the night, then side with the vampires: you fight Patrick and his men alongside them, and the Lady of the Night pays you 200 orens.
Stay neutral: everyone turns on everyone; this route gives the most experience.