You enter trough a secret door in the Annex of the Tower using using the Black Armory Badge that slider gave you. Where Ada 1 greets you in the perfect combination of chilling, jaded, and mysterious in a soothing voice

Greetings. I am Ada-1, curator of the Black Armory. I hope you have come with a worthy purpose.

You are quite skilled with your weapons. I admire your craftsmanship. Maybe you could show me how you handle them.