The passage of time

'Very disturbing developments down London Underground,' said the chairman of the insignificantly-sized investment company SmallBlue Planet. 'All that stuff about terrorist plots and cyanide gas, you mean?' I replied. 'Not really,' said the chairman. 'More that somebody has apparently taken out one of those large platform advertisements.' 'What's so unusual about that?' I asked. 'It's an investment company that's done it,' said the chairman. 'Good grief,' I said. 'That really is news. After their prolonged absence, I just assumed investment ads had been made illegal ' too many punters f...