"As you prefer. I only repeat that I mean no harm and I add that the salon inside is pleasant. We can all have a—"
"We've got a drink," blurted Dusty. He turned on his heel and got the quart from the seat by the helm. He stopped to get a third glass. He poured.
Scyth tasted gingerly. "Very smooth," he said. "What is it?"
"Bourbon."
"Bourbon. Tastes like an excellent liquor. Thank you. Now—" Scyth sat down on the edge of the deck with his feet hanging into the cockpit and settled himself for a session. "Dusty, we are here because we are creating a beacon for our galactic spacelanes."
"Beacon?"
Scyth nodded. "You have the insular viewpoint," he remarked. "You can stand at night and point out your destination. But you cannot even see Marandis from here, even with the finest telescope ever built. Stars lie in the way, huge gas fields and nebular clouds block fast direct passage. To chart our course safely past such stellar menaces, we establish beacons at the ends of certain free passages. For instance, Sol lies at the end of a fifteen hundred light year straightaway from the last beacon we set up. Here at Sol a slight turn in the course is made and there is another straightaway for a thousand light-years toward the Spiral Cluster. We—my friends and I—are charting the course through a rather interesting rift from Marandis to the Spiral Cluster. This rift, along which you lie, has been hidden from us for thousands of years. When it is finished it will cut hours from our travel-time."
"And maybe so. But what is a beacon and how do you establish it?"
"Dusty, when a spacecraft is running at fifteen hundred light-years per hour, a three-day-variable star winks in the sky ahead like a blinker-light." Scyth chopped his left palm rapidly with the edge of his right hand. "Wink-wink-wink it goes. And the pilot puts his spacecraft point-of-drive on the beacon and holds it there until he passes it and aims to the next. You—"
"Variable star!" blurted Dusty.