Dedbert is a student at Underworld Elementary, a school for kids who
have died in outrageously wacky ways. Unfortunately, Dedbert doesn't fit
into any of the school's necro niches. He died flushing himself down the
toilet, and now he's the butt of all butt jokes. Then one day, a new
student, Skully, arrives. And guess what? She's Dedbert's death twin.
They died in the exact same way! These two quickly become friends, and
discover that they truly are Tombstone Twins.