Today, though, Bean had a new toy. It was a deadline, one of the thin, almost invisible twines used during construction in space to hold two objects together. Deadlines were sometimes kilometers long. This one was just a bit longer than a wall of the battleroom, and yet it looped easily, almost invisibly, around Bean's waist. He pulled it off like an article of clothing and handed one end to one of his soldiers. "Hook it to a handhold and wind it around a few times." Bean carried the other end across the battleroom.
As a tripwire it wasn't too useful, Bean decided. It was invisible enough, but one strand of twine wouldn't have much chance of stopping an enemy that could easily go above or below it. Then he got the idea of using it to change his direction of movement in midair. He fastened
