A very readable fiction with lots of action and tension. It had a very good twist at the end too which makes it differ from the usual Sci Fi cliché plots. Less impressive is the writing and the cliché narrative devices. Writing is readable and solid but has little artistry or complexity one might find in more recognised classic fiction. I tire of the evil alien trop. the evil foreigner troops, especially the evil Iranian or Chinese and the romance which fine is pretty much a cliché too. so some elements of this most readable text might be improved for me anyway.