Mel boards the night bus home hoping to get her head down and catch up on sleep. Unfortunately for her, the elderly man in front of her has other plans. Rising from his chair to turn around and face in Mel's direction, the man begins a discussion about Flat Earth Theory. Naturally, Mel is dismissive of the man but as he reveals himself in full possession of the gift of the gab she begins to wonder whether there may be some truth to this man's conviction of the earth's real nature, a conviction convincingly claimed to have come from a journey made by the man to the edge of the atlas. What's more, his story is illustrated by his conjuring of an ancient map said to prove his claim. Mel is enchanted and wants to know more. She has many questions and luckily for Mel every one of them will be answered by the map.