‘Why?

‘Because he might come unstuck entirely. It's a pretty ser­ious matter for a man's religion to fail him.

‘Hm-m-m. How about yourself? Doesn't it hit you just as hard?

‘Not quite. I'm an engineer- From Rambeau's point of view just a high-priced tinker. Difference in orientation. Not but what I'm pretty upset.

The audio circuit of the communicator on Gleason's desk came to life. ‘Calling Chief Engineer Stevens - calling Chief Engineer Stevens.' Gleason flipped the tab

‘He's here. Go ahead.

‘Company code, translated. Message follows: "Cracked up four miles north of Cincinnati. Shall I go on to Nebraska, or bring in the you-know-what from my own crate?" Message ends. Signed "Mac".

‘Tell him to walk back!' Stevens said savagely

‘Very well, sir.' The instrument cut off

‘Your assistant?' asked Gleason

‘Yes. That's about the last straw, chief. Shall I wait and try to analyse this failure, or shall I try to see Waldo?

‘Try to see Waldo.

‘OK. If you don't hear from me, just send my severance pay care of Palmdale Inn, Miami. I'll be the fourth beachcomber from the right.

Gleason permitted himself an unhappy smile. ‘If you don't get results, I'll bç the fifth. Good luck.

‘So long.

When Stevens had gone, Chief Stationary Engineer Striebel spoke up for the first time. ‘If the power to the cities fails,' he said softly, ‘you know where I'll be, don't you?

‘Where? Beachcomber number six?

‘Not likely. I'll be number one in my spot, first man to be lynched.

‘But the power to the cities can't fail. You've got too many cross- connects and safety devices.

‘Neither can the deKalbs fail, supposedly. Just the same, think about Sublevel 7 in Pittsburgh, with the lights out. Or, rather, don't think about it!

Doc Grimes let himself into the aboveground access which led into his home, glanced at the announcer, and noted with mild, warm interest that someone close enough to him to pos­sess his house combination was inside. He moved ponderously downstairs, favouring his game leg, and entered the lounging room

‘Hi, Doc!' James Stevens got up when the door snapped open and came forward to greet him

‘H'lo, James. Pour yourself a drink. I see you have. Pour me one.

‘Right.

While his friend complied, Grimes shucked himself out of the outlandish anachronistic greatcoat he was wearing and threw it more or less in the direction of the robing alcove. It hit the floor heavily, much more heavily than its appearance justified, despite its unwieldy bulk. It clunked

Stooping, he peeled off thick overtrousers as massive as the coat

He was dressed underneath in conventional business tights in blue and sable. It was not a style that suited him. To an eye unsophisticated in matters of civilized dress, let us say the mythical Man-from-Antares - he might have seemed uncouth, even unsightly. He looked a good bit like an elderly fat beetle

James Stevens's eye made no note of the tights, but he looked with disapproval on the garments which had just been dis­carded. ‘Still wearing that fool armour,' he commented

‘Certainly.

‘Damn it, Doc - you'll make yourself sick, carrying that junk around. It's unhealthy.

‘Danged sight sicker if I don't.

‘Rats! 1 don't get sick, and I don't wear armour - outside the lab.

‘You should.' Grimes walked over to where Stevens had re­seated himself. ‘Cross your knees.' Stevens complied; Grimes struck him smartly below the kneecap with the edge of his palm. The reflex jerk was barely perceptible. ‘Lousy,' he remarked, then peeled back his friend's right eyelid

‘You're in poor shape,' he added after a moment. Stevens drew away impatiently. ‘i'm all right. It's you we're talking about.

‘What about me?

‘Well- Damnation, Doc, you're throwing away your repu­tation. They talk about you.

Grimes nodded. ‘I know. "Poor old Gus Grimes - a slight touch of cerebral termites." Don't worry about my reputation; I've always been out of step. What's your fatigue index?

‘I don't know. It's all right.

‘It is, eh? I'll wrestle you, two falls out of three.' Stevens rubbed his eyes. ‘Don't needle me, Doc. I'm run­down. I know that, but it isn't anything but overwork.

‘Humph! James, you are a fair-to-middlin' radiation physicist - ‘Engineer.

‘-engineer. But you're no medical man. You can't expect to pour every sort of radiant energy through the human system year after year and not pay for it. It wasn't designed to stand it.

‘But I wear armour in the lab. You know that.

‘Surely. And how about outside the lab?

‘But- Look, Doc - I hate to say it, but your whole thesis is ridiculous. Sure there is radiant energy in the air these days, but nothing harmful. All the colloidal chemists agree-

‘Colloidal, fiddlesticks!

‘But you've got to admit that biological economy is a matter of colloidal chemistry.

‘I've got to admit nothing. I'm not contending that colloids are not the fabric of living tissue- They are. But I've main­tained for forty years that it was dangerous to expose living tissue to assorted radiation without being sure of the effect. From an evolutionary standpoint the human animal is habitu­ated to and adapted to only the natural radiation of the sun, and he can't stand that any too well, even under a thick blanket of ionization. Without that blanket- Did you ever see a solar-X type cancer?

‘Of course not.

‘No, you're too young. I have. Assisted at the autopsy of one, when I was an intern. Chap was on the Second Venus Expedition. Four hundred and thirty-eight cancers we counted in him, then gave up.

‘Solar-X is whipped.

‘Sure it is. But it ought to be a warning. You bright young squirts can cook up things in your labs that we medicos can't begin to cope with. We're behind - bound to be. We usually don't know what's happened until the damage is done. This time you've torn it.' He sat down heavily and suddenly looked as tired and whipped as did his younger friend

Stevens felt the sort of tongue-tied embarrassment a man may feel when a dearly beloved friend falls in love with an utterly worthless person. He wondered what he could say that would not seem rude

He changed the subject. ‘Doc, I came over because I had a couple of things on my mind-

‘Such as?

‘Well, a vacation for one. I know I'm run-down. I've been overworked, and a vacation seems in order. The other is your pal, Waldo.

‘Huh?

‘Yeah. Waldo Farthingwaite-Jones, bless his stiff-necked, bad-tempered heart.

‘Why Waldo? You haven't suddenly acquired an interest in myasthenia gravis, have you?

‘Well, no. I don't care what's wrong with him physically. He can have hives, dandruff, or the galloping never-get-overs, for all I care. I hope he has. What I want is to pick his brains.

‘So?

‘I can't do it alone. Waldo doesn't help people; he uses them. You're his only normal contact with people.

‘That is not entirely true-

‘Who else?

‘You misunderstand me. He has no normal contacts. I am simply the only person who dares to be rude to him.

‘But I thought- Never mind. D'you know, this is an incon­venient setup? Waldo is the man we've got to have. Why should it come about that a genius of his calibre should be so unapproachable, so immune to ordinary social demands? Oh, I know his disease has a lot to do with it, but why should this man have this disease? It's an improbable coincidence.

‘It's not a matter of his infirmity,' Grimes told him. ‘Or, rather, not in the way you put it. His weakness is his genius, in a way-

‘Huh?

‘Well-' Grimes turned his sight inward, let his mind roam back over his long association, lifelong, for Waldo, with this particular patient. He remembered his subliminal mis­givings when he delivered the child. The infant had been sound enough, superficially, except for a slight blueness. But then lots of babies were somewhat cyanotic in the delivery room. Nevertheless, he had felt a slight reluctance to give it the tunk on the bottom, the slap which would shock it into taking its first lungful of air