When the big people stopped beleiving and became 'civilized' the little people, or faeries if you will, moved away from this world. Their huge herds of horses reluctantly moved away with them. But sometimes, when rain drives the big people inside, the horses return to their old pastures to chase the sunbeams through the chinks in the clouds. Those of the big people who have seen this call it the 'rainbow'. You didn't really think it was caused by refracting light did you?
Coloured pencils, touched up in photoshop, show with a snowflake for scale HURRAH! :-D Mod's choice, 1/3-04 -thankyouthankyouthankyouthankyou *Spends rest of day on cloud nr 9*