He wanted plenty of time to check his figures. And perhaps there might be the chance for a nap. He had dragged the bed makings out of the cabin and it was ready for him now. The other two were, presumably, sleeping in the cabin. He told himself that that was a good thing and that he wanted nobody around bothering him, yet when he heard the small sound of bare feet outside, he looked up with a certain eagerness.
She knelt down on the floor beside him and looked at the thick volumes opened before him and at the sheets of calculations. I hope I understand enough. He kept telling himself all that and it did no good. He wanted to share it with somebody. Things like the mass density between here and Lingane affect the course of the jump, because that mass density is what controls the curvature of this part of the universe. But then if you happen to have a super giant within ten light-years, all bets are off. In my bunk I simply felt helpless and lost with so much emptiness in all directions. How different she was.
There was a trembling eagerness- in his voice. The Autarch took a step backward. Biron took a slow step forward. If I blasted you, it would mean that a millionth of a second would separate your life from your death. You would have no consciousness of dying. That would be bad. 
The information would go streaking back to Tyrann and the armada “Would gather. And he himself would die knowing that he might have saved the rebellion, but had risked death to ruin it. It was during that dark time that he thought of the document again. The document he had once failed to get.