Bug report:
After beating the game and cleaning out all of the bosses in the Old Trench, I used the fast travel for 5 marks to get to Lamina, and then left Lamina to the north. I then tried to go south back into Lamina, and got the message "It's best not to go there right now.", and was unable to walk south into Lamina, leaving fast travel for 5 marks the only way into Lamina.