Cast Doubt

There's no end of dangers on a factory floor. Lethal machinery, welding fume, metalworking fluid mist-Hal Rogers, occupational hygienist, is well acquainted with them all.

When there's a case of dermatitis at a machining factory that even he can't explain, Hal begins to suspect that there's more going on than a simple health and safety violation. Everything points towards industrial sabotage-and it could be fatal.

With just an engineer's ruined hands and traces of unexplained metals to go by, Hal's the only one who can solve this mystery. And, as he'll soon find out, there are people who'll do anything to keep him from the truth.