I associated Michael Crichton only with Jurassic Park. It was only thanks to Westworld that I even realised that he was really prolific. It then took a “science fiction must-read” list for me to finally get to this book. It’s one of his earlier works, and I found the premise very interesting. Though there is an extra terrestrial “invasion” involved, it’s not the run-of-the-mill advanced spaceship kind. That does not mean that humans don’t get killed off though. This interesting plot, reasonably well fleshed-out characters and a gripping pace makes it a must-read.