I remember a book set in England about a substance that was in the sewers and comes up and every time it touches something organic it transforms it into itself.
- The hero uses iodine to stop it and herd it into specific directions.
- It had a very strange picture on the cover and was a green book.
- It was a 60's or 70's book I think.
Any ideas what the title was? I keep thinking "The Clone" or something similar. Please, Please, Please Someone help,me with the title as it is driving me insane.