Dean Koontz is such a great writer; I love his descriptions! No cliches here. And the characters are real and interesting, even Fred the plant, is well drawn. The villain is evil and nasty scary, and the story is full of mysteries. Why was Dylan injected and by what? And when he and his companions are running for their lives, sometimes he has a hard time persuading them--Jilly--injected almost by accident--and Shep, his autistic brother, to keep moving! Then there are the pursuers, the visions, the tunnels, Shep's cryptic comments, explosions, and bullets--lots of bullets. Non-stop action and intriguing characters. I'd love a sequel.