D&D: You walk to the gatekeeper and ask him what that was about

From Create Your Own Story

As you inquire the gatekeeper, he says the guard went to warn them about troubles in the sewer. Some kind of demons and was wondering if the school had anything to do with it.

D&D: You use the old school passageway into the sewer

D&D: You try to find an entrance in the sewer in the merchants district

D&D: You try to catch up to the guard to get more information