Edgar & Ellen is a book series and animated television series. Created by Simon & Schuster Children's Publishing, it is based on twelve-year-old orphaned twins who cause mischief and mayhem in their sickly sweet town, Nod's Limbs. The series currently contains nine books in addition to some side material. The twins' names are derived from American author and poet Edgar Allan Poe. Rare Beasts is the first book, followed by Tourist Trap, Under Town, Pet's Revenge, High Wire and Nod's Limbs, with a sequel series premiering just a year later, currently consisting of Hot Air, Frost Bites and Split Ends. The Mischief Manual, a book written in the voice of the twins themselves, hit the shelves in June 2007. A series of animated shorts premiered in 2006 and a weekly TV series premiered October 7, 2007 both on Nicktoons.Edgar and Ellen live in a 13-story mansion on the edge of Nod's Limbs. Ellen is supposedly the older of the twins by two minutes and 13 seconds. They live with a hairy creature whom they refer to as Pet — a hairball with an eyeball. Their groundskeeper and caretaker, Heimertz, lives in a small shack just outside the house. Their mansion is located near a now disassembled junkyard, which the twins had lovingly dubbed their "Gadget Graveyard". They take parts from it and create marvelous contraptions for trouble.

Both of the twins wear striped footie pajamas and prank each other all day long—when they are not pranking the goody-goody townspeople of Nod's Limbs. They are clever, fearless, mischievous and creative. So creative, in fact, that their pranks often backfire hilariously.