How long ago? Eight—ten weeks ago?

It seemed impossible that all this horror had occurred in such a short time.

But there it was, stuck in space, protruding about a hundredth of an inch from nowhere into clear visibility. So little was showing that I couldn't be sure, but it looked like the tip of an ordinary little nail or wood-screw.

This was my "murder-weapon", the cause of Calvin Baxter's accident. He'd run into it, jerked his head back, and the speck had come out the same hole it went in.

In twenty minutes by the clock I had the lab crew out from headquarters, and had explained the whole business to them. First they measured the length of the protrusion, and my guess was about right. It measured .0095 inches on the micrometer caliper.

If it were a screw an inch long, at that rate of "bleedback" it would take another 98 weeks to come the rest of the way out. Almost two years!

Paul Riley, the lab chief, was sharp. He caught it about the same time I did and turned to look at me. "We've got to figure a way of getting those things out of the way."

I nodded. "But quick."

Collins, our print man, said, "Why not just shoot them back into wherever it is they go, with another i-Gun?"

"And have them come bleeding back after a few weeks?" Paul frowned him silent.