The Grim Adventures of Billy and Mandy: When Worlds Collide

A Crossover with Death: At Death's Door

Written by: Sakura Solo

Disclaimer: I do not own the above. Death and Delirium in this story appear in manga style from the ending scene, and they belong to Neil Gaiman. Billy, Mandy, Grim and those guys belong to Maxwell Atoms. Enjoy!

Chapter 1: Irwin, Supreme Destroyer of Parallel Universes

It was a scorching July afternoon in Endsville, as it always was at that time of year. Because of that, every pool or body of water was filled to the brim with people, animals, and anything else. Of course, Harold had promised Gladys a day off, and with Billy seemingly more hyperactive than usual, both headed for the nearest resort, as had Mandy's parents. So, Grim was stuck babysitting them all day, and that's how Irwin found them, sitting inside, watching monster movies and drinking lukewarm sodas.

Irwin was staying with his grandma-ma while his dad was away in Maui for business. As for his mother, nobody had seen her around for a while, so life went on. When As the World Spins came on, the old crone requested, "Irwin, I'm busy watchin' my soaps, so can you go to the post office, and drop off this letter? "But Grandma-ma, I'm playing with my action figures yo," Irwin complained. That resulted in getting whacked with her cane, so Irwin walked off to the post office, and after dropping off the letter, he came across an old man selling comic books. "What kind of comics you sellin', homey," Irwin asked. The man, who was wearing ragged jeans and a flannel jersey said, "Just stuff. You want one? Here." He then took off, ranting at a passing SUV. Irwin then decided to go see what his beloved Mandy was doing.

When Irwin walked in, he said, "Hey Grim, Billy. Hello, Mandy." Grim stretched his bony arms, "Hello Irwin. What are you doing over here?" "Just wondering what my sweet Mandy was up to." Mandy groaned, "Forget it, Zit Lips. What book is that?"

"Nothing," Irwin shouted angrily, letting the book fall to the floor. Grim and Billy jumped up, and Billy shouted, "OOOH! Irwin got a nudey comic!" Grim shouted, "You idiot! That book is from a parallel universe, it needs to be sent to de underworld, mon."

Irwin grabbed the scythe and shouted, "NO! It's my book, and I will destroy it before you touch it! Power of the Sycthe, destroy that comic and its universe! MUWAHAHAHAHA!" A blinding light followed, and then there was a BOOM!

Meanwhile, in a parallel universe…

With Hell's minions making a mess, Death helped Delirium to her feet, when a violent whirlwind pulled them in, obliterating everything, ending the Endless, and that entire universe.

"AAAHHH," Delirium shrieked as both girls managed to fall into the vortex. "Hold on, Sis," Death warned, as everything went black.