A rainbow appeared briefly over Singapore, though I was the only one to notice it, standing alone on the open caboose of our train as it travelled north over the Strait of Johor, leaving the Lion City behind.
It was only a brief sighting. An embankment of dark cloud was forming, and quickly overtook us as we passed into Malaysia, releasing another torrent of rain and lightning that cut the muggy heat and raised a stench from the dirty strait.
