Verminhorde

From publisher blurb:

"Deep beneath the venerable city of Myrillium, an old evil festers in the dark. When the hordes of the undercity spew onto the streets to drag many of its people down into the warrens below, the characters must venture into the dark to rescue the son of a prominent noble and win his favour. Cover your nose and pull up your breeches, for their quarry has been taken into the deepest, dankest sewer depths by the ravenous Verminhorde."

Verminhorde provides a Dungeon Master with everything they need to run this skittering adventure for characters of level 4. This story can be seamlessly inserted into an existing campaign or run as a unique stand-alone adventure.