Window to Polis

Don't you understand? Alright, enough with the diplomatic games. We don't have the time to wait for the registry to give us an answer. From what I know of your personal history, I can tell that Yasker trusts you with making decisions. Otherwise you wouldn't be here.
I strongly encourage you to help Aoidoi, especially since they gave you a key to their city. By the way, you should bring this crystal to Svetlana so that she could include Polis in the portal net.

Polis? I haven't heard of such thing.
Ah, you're from Vasily. Alright then, I'm not going to play dumb.
Give me your stone. I'll see what I can do.
...
Here you go. I have no idea where it will take you. So good luck!