The Ratcatcher (Gotham Stories) - Batman: Arkham City (2011)

Otis Flannegan, a.k.a. The Ratcatcher, looked out through the cellar window on the opening day of Arkham City. He had kept out of trouble so far, but he would need a plan to survive. Arkham City claimed to be escape-proof and the Penguin had the illicit goods market sewn up so Ratcatcher would sell small comforts.

Fine soap. Breath mints. Extra buttons. He sent his rats out to collect such items from the outside world. It worked, business was brisk, and he felt safe until the Penguin came looking for his rival vendor.

Flannegan was dragged screaming through the streets of Arkham City, followed by a trail of rats, into the museum and never to be seen again.