As tired fishermen retire to the Angler's Dive after a long days work, they revel in the drinks and food, what they didn't know was that while they enjoyed their free time, they left the main door open.
A gapping maw that sprouted light in the night. Rats chittered and squeaked, they're screeching growing higher until it came. From the dark maw came into the light a huge rat neuri, screeching at the patrons, tossing them and their chairs and tables aside. Two brave people stood up to the rat, a man and a woman, but were quickly forced to retreat.
The rat neuri pursued... and the locals learned to never forget to close their doors...