He glanced at the new radar screen they had set up that morning beside the bank of other controls. Any ship coming within a hundred miles of the laboratory would be detected instantly and pinpointed.
The board flashed now. In the screen they saw a huge passenger ship spearing down toward the airport south of them.
"With the port that close," said Russ, "we'll get a lot of signals."
"I ordered the Belgium factory to rush work on the ship," said Greg. "But it will be a couple of weeks yet. We just have to sit tight and wait. As soon as we have the ship we'll start in on Chambers; but until we get the ship, we just have to dig in and stay on the defensive."
He studied the scene in the screen. The ship had leveled off, was banking in to the port. His eyes turned away, took in the laborator
