Millions of gossamer-slung triffid seeds, free now to drift wherever the winds of the world should take them … It might be weeks, perhaps months, before they would sink to earth at last, many of them thousands of miles from their starting place. That is, I repeat, conjecture. But I cannot see a more probable way in which that plant, intended to be kept secret, could come, quite suddenly, to be found in almost every part of the world.

