"About the work here," he said in a mild, controlled voice, "we are forced to work on a definitely limited schedule. I have field apparatus located at points several miles distant from here. But we can't venture out to take the necessary readings until the weather is propitious."

"What's the weather got to do with our taking readings?" Ward demanded.

"Simply this: There are certain periods of intense precipitation on this area of Mars. These periods are accompanied by high velocity winds. The atmospheric disturbance reaches monsoon proportions. During such periods, for some reason, the Raspers are exceptionally active.

Something in the nature of the monsoon reacts on them with very savage results. They seem to feed on the electric disturbances in the atmosphere. They go wild during these changes in the weather and search for any moving thing to destroy. In some manner they are able to cover enormous distances during the monsoon and they can travel with incredible speed. When a monsoon is threatening I never leave the station."

Ward listened in growing irritation to this explanation.

"How often do you have monsoons here?" he demanded.

"Unfortunately, quite often," Halliday answered. "All of my instruments indicate now that one is brewing. I haven't been able to do more than a few hours of work in the last two months. I've been waiting for the weather to break, but so far it hasn't."

"Do you mean to tell me," Ward said incredulously, "that you've been sitting here, twiddling your thumbs for the past two months because you're afraid to take a chance on a wind blowing up?"

"That is exactly what I mean," Halliday said. "But it isn't the wind I'm afraid of. It's the things that come with the wind that make any field work impossible. I've learned a few things about the Raspers in my three years and one is that it doesn't pay to give them a chance. That's all they need. That's all they're waiting for."

Ward stood up impatiently and jammed his fists into his pockets. It took all of his self control not to let his anger and contempt for the man explode in roaring fury.

"I can't understand your att.i.tude," he said at last, through tight lips.

"I'm green and new here. I don't know anything about the set-up except what you've told me. But I know from your own admission that you've never seen these things you're so mortally afraid of, you've never stood up to them and given them a taste of ray juice to think about, you don't really know anything about them, except that you're terrified of the very thought of them. That isn't a reasonable att.i.tude. Only one kind of man thinks that way, and that's a man without a touch of starch in his backbone, or a bit of honest-to-goodness guts in his make-up. If you want to hug this place like a scared school-girl that's all right, but I'll be double-d.a.m.ned if I'm going to let any superst.i.tious nonsense keep me from doing the job I was sent here to do."

"That is a very brave speech, Lieutenant," Halliday said, "and I admire you for it. But you are going to do as I say in spite of your own opinions. We will stay here and take no unnecessary chances until our instruments indicate that the monsoon weather has pa.s.sed. That is an order."

Ward choked back his wrath. He glared at Halliday for an instant, then wheeled and strode into the small storeroom that was to serve as his sleeping quarters. He banged the door shut and sat down on the edge of the cot, his fingers opening and closing nervously.

He wasn't sure just what he'd do, but he didn't intend to stand for Halliday's craven policy of hiding in a locked room, instead of doing the work his country expected him to do. Halliday was a psychopathic case; his mind was full of a hundred and one imagined horrors and they kept him from doing his job. There was little wonder that he had been three years attempting to compile the information that should have been gathered in three months.

The man was so terrified of imagined dangers that he was helpless to act. Ward felt a moment of pity for him, the pity the brave invariably feel for the weak and cowardly. But he also felt a cold and bitter contempt for the man who had allowed his own fear and timidity to hold up the important work of acc.u.mulating data on this section of the planet. If he wasn't man enough to do the job, he should have at least been man enough to admit it.

Ward decided that the next day he'd have the thing out. He undressed slowly and stretched out on the narrow cot, but sleep was a long time in coming.

When he stepped from his room the next day he saw that Halliday was standing in the doorway gazing out over the dull gray Martian landscape.

"Aren't you taking quite a chance?" he asked, with heavy sarcasm.

Halliday ignored the gibe. "No. I made a careful check before I released the door lock and opened up. Did you sleep well?"

"Fair," Ward said. "How can you tell the days and nights here? Is there ever any change in the sky?"

Halliday shook his head. "Sometimes it gets a little darker, sometimes it's lighter. When you're tired you go to bed. That's the only standard we have." He shaded his eyes with his hand and stared for a long moment at the bleak, depressing horizon.

Looking over his shoulder, Ward noticed swirling humid mists drifting in the air and, above, huge ma.s.sive clouds of dense blackness were gathering. He felt a peculiar electric tightness in the atmosphere.

Halliday closed and locked the door carefully.

"Might as well have breakfast," he said. "There's nothing else we can do today."

"Do we have to stay cooped up here all day?" Ward asked.

"I'm afraid so. This weather is ready to break any minute now, and when it does I intend to be behind a well-locked door."

Ward's lips curled slightly.

"Okay," he said quietly, "we'll wait for the monsoon to blow over. Then, Raspers or not, I'm going to work."

But four long days dragged by and there was no indication that the monsoon weather was prepared to break. Low dense clouds were ma.s.sed overhead and the air was gusty with flurries of humid wind.

Halliday grew increasingly nervous. He spent every waking hour at the periscope in a constant study of the dark horizons and he said little to Ward.

Ward's impatience grew with every inactive moment.

"How much longer are we going to hide in here like scared rats?" he blazed finally. He paced furiously up and down the small room, glaring in rage at Halliday's stooped figure.

Halliday smiled nervously and removed his gla.s.ses. His fingers were trembling so violently that he almost dropped them to the floor.

"I can't even guess," he said shakily. "I was hoping that the monsoon would blow over, but I'm afraid we're in for it."

"You've been saying that ever since I arrived," Ward said bitterly.

Halliday was studying a _aerograph_ on the wall. When he turned to Ward, his face was gray. His lips were more tightly clamped than ever.

"If anything should happen to our front door lock," he said, "there's an exit we can use in the kitchen. Possibly you've noticed the small door beside the refrigeration and oxygen unit. That leads to a small room that can be locked from the inside. There are supplies there to last a week. I didn't tell you this before because I was afraid it might alarm you."

"Thanks for sparing my feelings," Ward snapped. "But I don't think I'll be needing your cosy little refuge. I've stalled just about enough. I was sent here to do a job and by Heaven I'm going to try and finish it."

He jerked his tunic from the back of a chair and scooped up his raytube and belt. Halliday regarded him in silence as he buckled on the weapon.

"What do you think you're going to do?" he asked at last.

"First I'm going to flash a message to Earth, asking that I be placed in command here," Ward said. He b.u.t.toned his tunic swiftly, and his eyes were cold slits of anger as he looked at Halliday nervously fumbling with his gla.s.ses. "I was sent here with instructions to find out what the delay was in getting the work done. I've found out to my satisfaction. You've done about one day's work for every month you've spent cooped up in here, trembling every time the wind howled. When I come back I'll have an authorization from GHQ to take over here immediately. Then you and I are going to work and d.a.m.n the weather. If you don't want to cooperate," Ward slapped the weapon at his hip, "I'll use what force is necessary to make you."

"Please listen to me," Halliday said desperately. "You're impulsive and reckless and I admire you for it. Sometimes I wish I were more like that. But I know the situation here better than you do. We'd be running a terrible risk trying to work right at this time."

"Sure," Ward said, "We'd be running a risk. That's apparently your entire philosophy. Sit tight, do nothing, because there might be a slight risk involved."

He turned and strode to the door.

"Wait," Halliday cried. "You can't go out now."

Ward disengaged the lock with a swift deft motion.

"Who's going to stop me?" he asked.

Halliday crossed to his side with quick, pattering strides. He grabbed him by the arm and pulled him around.