Rain taps the windows all morning — and then stops. What makes a rainbow appear? Oliver the owl has a glass triangle and a favorite question.
Episode 3 begins the morning after our longest rain yet. Bramblewood is one big puddle, the sky looks freshly washed, and over the far hill a pale arc of color is just beginning to wake up.
The question this time belongs to Mila: what makes a rainbow appear? It rained all morning with no rainbow at all — so why does one show up only after the rain stops?
Oliver the owl leads this adventure with a sunbeam, a glass prism, and the astonishing discovery that plain white light is secretly carrying every color at once. Red bends least. Violet bends most. The rest line up politely in between.
A rainbow is millions of raindrops, all showing off at once.
Then comes our favorite sequence we've ever made: Milo and Mila imagine shrinking down small enough to stand inside a raindrop — because every raindrop, Oliver explains, is a tiny round prism throwing its own fan of colors.
By the end, the whole cast gathers on the hilltop under a double rainbow, and Mila lands the line our writers' room cheered for: the rainbow isn't really in the sky — it's being handed to us, drop by drop.
And because every answer opens a door, Episode 3 ends with the question that starts Episode 4: if rain and sun make rainbows... where does the rain come from?