Collector Yumi:
Hmmm... very well. I'll trust you, which is more than I can say of most people.
Can you keep a secret? You must never reveal what I'm about to tell you: the legend of the shame of the Black Anvil Guild. This tale is really the shame of all Dwarves.
I can't tell you anything at all unless you promise to keep secret everything you learn here. Do you promise?
"I promise."