Part One - What's All Of This?

Melon was just minding his business, walking around his house. Papyrus isn't home for some strange reason, and Melon finds a door he hasn't seen before. He opens the door and finds a portal. Who knew that the portal would lead him to a different version of himself?

Cover picture is not mine! It was made by @Shade-Nara (here on Wattpad)!