Watchmen,
I came back from an expedition invisible and noticed an elf enter a hidden passage in the Canal Ward dragging a large sack. I followed him into a tunnel a short distance before he took something from his pocket and a portal opened. After a few moments I followed and found myself somewhere in a long hallway covered in slime. I believe I was somewhere within the Bowels of the Machine in Dunwarren. I returned through the portal, fearing it would soon close and trap me within. I stay at the Crone if you have questions or would like to examine the entrance to the tunnel, or where the device was used to open the portal.
Thom