I already recieved the bloody handkerchief from the lady in the Brothel as a key to Ravel's maze. But before that, I had already handed in my receipt to the clerk in the Foundary. Now I can't bring up dialogue options to activate the portal.
Is it neccessary to view my dreams with the dream builder before this? Nihl asks me to grab a cage from the seige tower, however, even after talking to Lazlo, I can't bring up any dialogue options which get him to bring up the topic. I don't know how to get in. I have already killed the green demon for Sebastian, if that is at all relevant.