Free The Witches of Karres by James H. Schmitz

the table, he didn't even become aware it was happening.
    He stared a moment longer at the lamp. Then he picked it up, and went down the passage to the captain's cabin, carrying it with him.
    Goth lay curled on her side in the big bunk, covers drawn up almost to her ears. She breathed slowly and quietly, forehead furrowed into a frown as if she dreamed about something of which she didn't entirely approve. Studying her face by the dimmed light of the lamp, the captain became convinced she wasn't faking sleep. Minor deceptions of that sort weren't Goth's way in any case. She was a very direct sort of small person...
    He glanced about. Her clothes hung neatly across the back of a chair, her boots were placed beside it. He dimmed the light further and withdrew from the cabin without disturbing her, making a mental note to replace the ruined door after she woke up. Back in the control room he switched off the lamp, set it on the desk, and stood knuckling his chin abstractedly.
    It hadn't been a lapse of memory; and if Goth had done it, she hadn't done it deliberately. Perhaps this klatha force could shift into independent action when a person who normally controlled it was asleep. There might be unpleasant possibilities in that. When Goth came awake he'd ask her what….
    The sharp, irregular buzzing which rose suddenly from a bank of control instruments beside him made him jump four inches. His hand shot out, threw the main drive feed to the off position. The buzzing subsided, but a set of telltales continued to flicker bright red...
    There was nothing supernatural about this problem, he decided a few minutes later. But it was a problem, and not a small one. What the trouble indicators had registered was a developing pattern of malfunction in the main drive engines. It was no real surprise; when he'd left Nikkeldepain half a year before, it had looked like an even bet whether he could make it back without stopping for major repairs. But the drives had performed faultlessly until now.
    They might have picked a more convenient time and place to go haywire. But there was no reason to regard it as a disaster just yet.
    He found tools, headed to the storage and on down to the engine deck from there, and went to work. Within half an hour he'd confirmed that their predicament wasn't too serious, if nothing else happened. A minor breakdown at one point in the main engines had shifted stresses, immediately creating a dozen other trouble spots. But it wasn't a question of the engines going out completely and making it necessary to crawl through space, perhaps for months, on their secondaries before they reached a port. Handled with care, the main drive should be good for another three or four weeks, at least. But the general deterioration clearly had gone beyond the point of repair. The antiquated engines would have to be replaced as soon as possible, and meanwhile he should change the drive settings manually, holding the engines down to half their normal output to reduce strain on them. If somebody came around with hostile intentions, an emergency override on the control desk would still allow occasional spurts at full thrust. From what he'd been told of the side effects of the Sheewash Drive, it wasn't likely Goth would be able to do much to help in that department...
    In a port of civilization, with repair station facilities on hand and the drive hauled clear of the ship, the adjustments he had to make might have been completed and tested in a matter of minutes. But for one man, working by the manual in the confined area of the Venture's engine. room, it was a lengthy, awkward job. At last, stretched in a precarious sprawl a third down on the side of the drive shaft, the captain squinted wearily at the final setting he had to change. It was in a shadowed recess of the shaft below him, barely in reach of his tools.
    He wished he had a better light on it...
    His breath caught in his throat. There was a feeling as if the universe had