Epilogue
Long ago during the Great Mushroom War lived a lost hero named Simon Petrikov, The father of Clara, the ice princess. He was also an uncle to young 8 year old named Marceline, who grows up to be the Vampire Queen of the Nightosphere.
He learns he must defeat one of the most evil of creatures, the Lich. He found a golden crown that provided magic powers of the snow. The Lich consisted of many powers, such as raising the dead for an evil army. He is about to drop a bomb containing about 3 tons of toxic waste and a potion brew to kill off the humans. Simon froze the bomb and the world with it. It wouldn't be until 3,000 years later that all of earth was thawed, but the crown, like a leech, drains the memories of before that day whilst keeping him alive.