Terry Nation was very critical of the direction the TV series took, and if you read this you can see why. No cosiness, fashion, optimism. A bleak & grim book, not for the suicidally depressive! An existentialist novel of how people reacted positively to the end of the world, with am absurdist end. (How did they react to that? We don't know.) Despite this being one of my fave teenage books, mind you I have caveats. Before SURVIVORS I was a huge fan of John Wyndham, esp. THE DAY OF THE TRIFFIDS. Survivors is perhaps too reminiscent of Wyndham, although it removes all the beauty & hope. See what happened when both Josella & Jenny leave London? They both find a car with its doors unlocked! And if they don't leave London, "there will be typhoid, cholera and God knows what" - identical plagiarism! And Dr. Emerson's talk to Abby about learning the old crafts & skills is a copy of a speech by Coker! Both books end up with the survivors fleeing ths mainland due to some dodgy, paramilitary organisation. They may both be accused of Cold War propagandism, although SURVIVORS may make a jibe at Arthur Scargill! On the other hand, Wyndham was not the first to write a post-apocolyptic novel. e.g., Earth Abides. You can see that both Wyndham & Nation were influenced by H.G.Wells, too, except I think it's fair to accuse Terry Nation of plagiarism of John Wyndham's work.