The Simpsons/Futurama Crossover Crisis II (2005) features a vortex which brings the fictional characters in the library-- and the Simpsons-- into the world of Futurama. These panels include Tarzan, Sherlock Holmes, Scarlett O'Hara, Captains Ahab and Nemo, Atticus Finch, Pippi Longstocking, Robin Hood, Dracula, the Tin Woodsman of Oz, and  the kiddies from Dr. Seuss's Hop on Pop, to name a few. The foot belongs to Giant Homer, from "Einser-award winning The Simpsons #1."

Elsewhere in town, Bart and Fry meet superheroes from the DC and Marvel Universes, and the complete works of Stephen King chase down the citizenry.