That first feeding so successfully accomplished, Mrs. Carver did not seem to worry quite so much about her husband, although she was careful to keep track of the feeding times, and to remind her sometimes forgetful son of his duty.

The feeding given this day, the boys consulted together.

"Shall we wear our spacesuits?" Jon asked.

"I don't see why. It's hot outside, but bearable, and the air's all right," Jak answered positively. "I not only tested it, but I breathed the sample I took in through the trap. It smells good, and hasn't hurt me any. We'll take our guns, and I want my magnifying glass and knapsack for specimens."

"And I'll put some multiform tools in my belt. Then, in case there's anything that needs doing on the tubes or hull, I can do it quickly."

The two brothers assembled their gear and Jon was just reaching for the button to open the inner door when they stopped short and shrank back.

For a terrific roar came from outside ... such a tremendous sound it penetrated even the hull of their ship!


3

At that horrid noise, the two boys stood frozen a moment, then with one accord raced to the control room, where they peered out of the quartzite ports.