'I asked you how long,' she said. 'How long am I going to live?' Francis looked back. Their eyes held for a moment, then his dropped. He studied his hands intently for few seconds, then looked up again.'I estimate your expectation of life, my dear, at approximately two hundred and twenty years.' It came from a lichen, a simple rock-loving plant made of fungi and algae. When biochemist Francis Saxover discovered its remarkable properties, the implications terrified him. But Diana Brackley, who also knew what it could do, envisaged a different outcome. She foresaw the coming of a new evolutionary order and with it, a revolution. A revolution with women at its heart, women who previously had not had the time to make the most of their lives and abilities. For the lichen contained the most

When Bill Masen wakes up blindfolded in hospital there is a bitter irony in his situation. Carefully removing his bandages, he realizes that he is the only person who can see: everyone else, doctors and patients alike, have been blinded by a meteor shower. Now, with civilization in chaos, the triffids - huge, venomous, large-rooted plants able to 'walk', feeding on human flesh - can have their day.

The Day of the Triffids, published in 1951, expresses many of the political concerns of its time: the Cold War, the fear of biological experimentation and the man-made apocalypse. However, with its terrifyingly believable insights into the genetic modification of plants, the book is more relevant today than ever before.