
ambitious.
Men took an ancient ship that was unsuited for any other use. They drove it to Canis Lambda, took
out the overdrive engine and put it in orbit near a mile-thick fragment of an exploded world. They
installed radars and telemeters and space-radio equipment. Three decks were filled with growing
things to provide food and purify the air. Finished, the former liner was not only a buoy and a
checkpoint for space traffic, but it was a hotel and a warehouse and other things besides.
Scott hadn't seen it when he heard about what he was running into, but he'd studied its plans. It had
freight doors in its hull. It had lifeboats in their blisters. It had air-locks and any number of
conveniences — cabins, a tiny theatre, a restaurant, even a small hospital far down in its stern-most
section. Passengers could board it from a liner following one space lane and wait in it for a liner
following a different lane to take them to another world. Freight could be transferred to it also. The
buoy — the check-point — was a necessary facility for interstellar traffic.
But one day, while Scott was on his way to take it over as his first independent command, several
passengers were there, awaiting a ship for Dettra. They were supposed to transfer. But they didn't.
This started everything, so far as Scott was concerned.
He heard about it in the control room of the liner taking him to the space buoy. The skipper had
checked for passengers to be landed and found that Scott was not only routed for Lambda, but was a
lieutenant in the Soace Patrol and headed for duty there. He was traveling as a paying passenger and
in civilian clothes, as Patrol men always did when off duty. The skipper had assumed he was only
another passenger. But when he realized who Scott was, he urgently invited him into the control
room.
"I'd no idea you were Patrol," he told Scott apolo-
getically, "or I'd have invited you here before."
"I've spent enough time in control rooms," said Scott, "not to mind be|ng just apassenger."
"We don't often see a Patrol man," explained the skipper, "and I didn't think —."
"I'm obliged to you," Scott told him. "I haven't worried about a thing since we left Dettra."
It wasn't quite the truth. Checkpoint Lambda was his first independent command, and he'd been
assigned to it for a very special reason. The whole project would work out best, and he'd seem better
fitted for other commands later, if absolutely nothing unusual happened on Lambda before he got
there, while he was there, and after he left. He'd been uneasy on that account alone but so far
everything seemed normal.
"I may have a problem at Lambda," said the skipper after a pause. "I'm glad you're aboard to take
over if it turns up."
Scott waited. The Patrol was the only interstellar service with authority to order anybody around, but
it leaned over backward to avoid any such behavior.
"Just before we left Dettra," the skipper explained, "a ship came in to the space port. She was minus
some passengers and some freight she should have picked up at Lambda. But at Lambda they insisted
there were no such passengers nor any freight for that ship. They said for her to go on her way. There
was no point in making contact."
Scott frowned. At this particular time it wasn't likely there'd be any confusion about passengers or
freight at Lambda. It was exceedingly important that everything be right. Within the past months one
change in the landing arrangements at Lambda had become necessary. Among Scott's special orders
were directions for him to take care of that change. But this was way out of line.
"One of the passengers was a girl," said the skipper.
"She was bound for Dettra. The liner skipper knew her family. She had to be on Lambda! She had to!
He put up an argument. So the Lambda Patrol officer came on the vision-screen. He swore at the liner
and ordered it on its way. There was some freight to be put off there, too. The Patrol officer refused to
take it. He swore again. He was adamant. So the liner had to go on to Dettra. Her skipper told me
about it arrhour before we lifted off."