Something moving on the ledge attracted my attention: it was a scurrying black ant. If I had thought about it, I might have wondered how it came there. But the next moment a more curious object on the sill caught my eye. I bent over. I couldn't make out what it was at first. A bug, perhaps. Maybe it was too small for a bug. Just a little dancing dust, no doubt. Then I discerned -- and gasped. On the sill, there -- it was a man! A man on the streetcar's window sill -- a little man! He was so tiny I would never have seen him if it hadn't been for his white attire, which made him visible...