By Dean Koontz
Harry Lyon used to be a rational guy, a cop who refused to allow his activity harden his soul. Then one fateful day, he used to be pressured to shoot a man--and a homeless stranger with bloodshot eyes uttered the haunting phrases that challenged Harry Lyon's sanity:
"Ticktock, ticktock. you can be useless in 16 hours...Dead through dawn...Dead by means of dawn...Dead via dawn..."