'Dilke has been miniaturized, first man in a daring experiment to solve Earth's hideous overcrowding. He was just a quarter of an inch high and there was no going back.
'Now Dilke, a microagent for British Intelligence, was on a mission to South America tracking down the source of a horrifying poison gas.
'And in the mammoth jungle Dilke was hunted... by mammoth-fanged wolf-spiders and the ferocious praying mantis.'
Source: Publisher's blurb.