A big mug of cocoa sits at the edge of the deck, cold and grey. Each friend hops, and a little heart floats out of the mug, drifts over to its friend and pops in a ring of light. With every heart the mug grows warmer and redder, steam curls up, and a tiny marshmallow settles on top. At last all three hop together, a big rainbow heart rises from the mug, and a shower of coloured hearts flies up over the deck.