Paul is biking across an open field with Marbles riding on the handlebars. It is a bright, sunny day with no wind at all. The boys are very pleased and surprised to stumble upon a brand new electric oven sitting in the middle of the field. This is perfect because they are both hungry for cake and Paul is a good baker.
Paul scavenges though the field and finds some wheat stalks, sugar cane and the pods from a baking soda plant. He harvests them and refines these ingredients in a make shift mill that Marbles had ingeniously patched together from an old tuna can, an ancient sparkly white stone, and a broken black comb. Some spit is added to lubricate the parts.
The refined dry ingredients are mixed together. A blue egg is dropped to them by a friendly sparrow flying over head and a lost woolly goat allows them to squeeze some milk.
Upon opening the oven, Marbles finds a cake pan, frosting and blue birthday candles.
Since there is nothing to plug the oven into, it is only logical that Paul and Marbles have to create electricity themselves. The friends each hold one prong of the oven's plug and run around in circles flapping their arms and dragging their feet to get static going. They can't stop until the oven reaches 400 degrees. It is exhausting.
Paul is so tired by the time the cake is done, he falls to the ground to rest. Marbles frosts the cake, lights the candles and sings "Happy Birthday". Then, Marbles cuts the cake and gives Paul the biggest piece. It is delicious!
The friends stretch out on the ground and laugh and eat the cake as they watch the clouds slowly move across the sky...