Oddly enough, never even heard of it, despite my love for Cornell Wilde. Here's what's funny. I read all the John Christopher I could find when I was a kid. Which meant The Tripods, Empty World and Fireball because the school library was run by a devout Mormon who hid all sci fi and fantasy as aggressively as she could. For some reason she disallowed me to do a report on Joan of Arc, despite the book being in her library, and forced me to do one on Brigham Young instead (this was not beneficial to my attitude towards the LDS Church in general or Mormons in particular). So I was this many years old when I not only found out about Death of Grass but that Fireball is the first in a trilogy. I wouldn't have even known about The Tripods if they hadn't been serialized in comic form in Boy's Life.