Finally Jon finished his astrogation, then went back into the living quarters. "Ready to set course to Three, Folks. Strap down while I change course." "How long'll it take?" "Just under a couple of days at two G's." "Ouch! Do we have to go that fast?" Jak complained. "You want to get there, don't you?" Jon turned away indifferently, while Mrs. Carver smiled at Jak and shrugged. During the balance of that "day" Jon stayed in the control room. When either of the others looked in, he was studying intently. Right after breakfast the next morning he put in a long session at the computer and his drawing board, then after lunch went into the storeroom. After a while he came out with his arms filled with wires, cells, relays and other oddments, which he carried into the control room. The others, busy with their own work and chores, paid no special attention to what Jon was doing. Seeing him busy like this had become so commonplace they seldom bothered even asking what he was doing when he did not volunteer the information. But as they approached Planet Three early the following morning, under negative acceleration, all three were in the control room, peering intently into the visiplates. What would they find there? Would there be people of some sort? Cities? Jungles, deserts, ice fields? All three minds were busy with such conjectures as they came closer in. Their instruments had already told them Three possessed an atmosphere containing water vapor, so they knew it could not be entirely untenable, unless the air contained poisonous gases. But what real conditions they would discover there remained to be seen. They had already found, charted and photographed the two small moons that circled the planet. One of these was fairly large--about nine hundred miles in diameter, and the other much smaller, about a hundred and fifty. Three, itself, was about five thousand miles through. "There are clouds down there," Jak called suddenly as they approached ever nearer at constantly decreasing speed. "Yes, I see them." "And there's a big ocean!" Their mother was equally excited. "Three's only about thirty million farther away than Two, although on the opposite side of the sun right now. So there shouldn't be too much difference, except Three'll be colder," Jon stated. "We're about a hundred miles up now, so I'm throwing us into a descending spiral." "There's a big mountain range, and some of the peaks are snow-covered," Jak called out a few minutes later. "I see them. We're down to about twenty miles now, and I'm setting a crisscross orbit for two or three revolutions to get a better view and take our first pictures. Mom, if you can tear yourself away, I'm hungry." She stepped back from the screen, laughing. "You're always hungry." Then she glanced at her wrist-chronom and gasped in dismay. "No wonder--it's over an hour past lunchtime!" "We'll yell if anything especially interesting shows up," Jak called as she was leaving.