The problem seemed simple: find the mud in sufficient quantities for mining, dredge it up, and transport it back to Earth to extract the drug. It was the first two steps of the operation that depended so heavily on the mud-acclimated natives of Venus for success. They were as much at home in the mud as they were in the dank, humid air above. They could distinguish one type of mud from another deep beneath the surface, and could carry a dredge-tube down to a lode of the blue-gray muck with the unfailing accuracy of a homing pigeon. If they could only be made to understand just what they were expected to do. And that was where production ground down to a slow walk. The next few days were a nightmare of frustration for Kielland as he observed with mounting horror the standard operating procedure of the Installation. Men and Mud-pups went to work once again to drag Number Five dredge out of the mud. It took five days of explaining, repeating, coaxing and threatening to do it, but finally up it came--with mud caked and hardened in its insides until it could never be used again. So they ferried Number Six down piecemeal from the special orbital transport ship that had brought it. Only three landing craft sank during the process, and within two weeks Simpson and Barton set bravely off with their dull-witted cohorts to tackle the swamp with a spanking new piece of equipment. At last the delays were over-- Of course, it took another week to get the actual dredging started. The Mud-pups who had been taught the excavation procedure previously had either disappeared into the swamp or forgotten everything they'd ever been taught. Simpson had expected it, but it was enough to keep Kielland sleepless for three nights and drive his blood pressure to suicidal levels. At length, the blue-gray mud began billowing out of the dredge onto the platforms built to receive it, and the transport ship was notified to stand by for loading. But by the time the ferry had landed, the platform with the load had somehow drifted free of the island and required a week-long expedition into the hinterland to track it down. On the trip back they met a rainstorm that dissolved the blue-gray stuff into soup which ran out between the slats of the platform, and back into the mud again. They did get the platform back, at any rate. Meanwhile, the dredge began sucking up green stuff that smelled of sewage instead of the blue-gray clay they sought--so the natives dove mud-ward to explore the direction of the vein. One of them got caught in the suction tube, causing a three-day delay while engineers dismantled the dredge to get him out. In re-assembling, two of the dredge tubes got interlocked somehow, and the dredge burned out three generators trying to suck itself through itself, so to speak. That took another week to fix.