JOHN SHIRLEY is the author of numerous novels, including Crawlers, Demons, and Wetbones, the recent motion picture novelization of Constantine, and story collections including Really Really Really Really Weird Stories and the Brain Stoker Award-winning collection Black Butterflies. He also writes scripts for television and film, and was co-screenwriter for The Crow. The authorized fan-created website is www.darkecho.com/JohnShirley and his official blog is www.JohnShirley.net.

Far in the future... an urgent distress signal is received from a classified Union Aerospace Corporation research facility based on Olduvai, Mars--and is suddenly silenced. Assigned to either contain or quarantine the mysterious threat, a crack strike team comprised of the most hard-bitten marines around believes that this will be another routine seek-and-destroy mission. But they will soon come face-to-face with the hellish nightmares that the researchers" unorthodox experiments have unleashed on Olduvai--a place where doom is waiting...

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Chapter 9

Chapter 10

Chapter 11

Chapter 12

Chapter 13

Chapter 14

Chapter 15

Chapter 16

Chapter 17

Chapter 18

Chapter 19

Chapter 20

Chapter 21

ABOUT THE AUTHOR