seems clear to me that, among other things, we may have the solution to the problem of space flight.â
Dannyâs eyes widened. âS-space flight!â he shouted.
The Professor raised his hand. âI said may ,â he cautioned. âI have no idea yet whether it will be practical. We donât know how long the effect lasts. That shoe may come tumbling down on our heads by tomorrow morning. Weâll leave it on the ceiling, for the time being, for observation. I have no notion of what the force of the liquid is, or whether it must be continuously charged with electricity, orâor about anything,â he finished rather helplessly. He threw out his arms. âAll I know is that it appears to cut off the power of gravity.â
Mr. Willoughby drew a long breath. âSpace flight,â he repeated. âBy George, itâsâitâs big . Too big to swallow all at once. One thing I do know, though: Iâll have to notify Washington.â
He glanced at his watch. âToo late now. Iâm afraid thereâll be no one in the office. First thing tomorrow morning, then. Meanwhile, thereâs one thing I must stress.â
He looked round at them, his eyes sober behind the gold-rimmed spectacles. âI must ask you allâespecially you, young manâânodding at Dannyââto be very circumspect about thisâthis effect.â
âI promise,â Danny said promptly. âWhat does âcircumspectâ mean? To look it over carefully?â
âThatâs âinspectâ â said the Professor. âNo, Mr. Willoughby means we mustnât say anything to anyone about it. It will have to remain a secret for the time being. You mustnât breathe a word of it, not even to your best friendâwhatâs his name?âthat boy who always looks so sad.â
âJoe Pearson. Not even to Joe?â
âNo. Will you promise? On your honor as aâas a scientist, Dan?â
Danny nodded solemnly.
âWell, then, thatâs settled,â said Willoughby. âIâll put through a long-distance call tomorrow. We will have to get a research grant.â He took off his glasses and wiped them carefully. âIf there is a possibility of space flight, weâll need money for the construction of a ship. A ship to the stars!â He looked up at the shoe on the ceiling. âGreat heavens,â he said. âThe excitement has worn me out. I feel quite exhausted.â
âWell, no wonder,â said Mrs. Dunn in a practical tone. âItâs long past dinner time. I think weâd all be the better for a mouthful of food.â
âWell spoken,â said the Professor. âDo I remember something about pineapple upside-down cake? Dr. Grimes, Mr. Willoughby, after you gentlemen.â He motioned to the dining room.
Dr. Grimes snorted. âDo you propose to begin experiments on thisâthis so-called antigravity effect, tonight?â
âTomorrow morning will be time enough,â said the Professor.
âThen I must ask you to put me up,â Dr. Grimes said bluntly. âI have no intention of leaving you to rig up any tricks behind my back.â
The Professor frowned. Then he controlled his annoyance and said quietly, âDr. Grimes, you have spent so much time in rocket research that I can understand your feelings about this new material. You are welcome to stay here as long as you like and to work with me on all experiments. It will be valuable, no doubt, for me to have someone to check all my work. Does that satisfy you?â
Dr. Grimes could never apologize. But he grunted, âThank you. Most generous.â Which was as close as he could come to admitting he might have acted rudely.
It was nearly eleven oâclock when Danny at last went up to bed. Downstairs he could hear the three men still talking and arguing loudly. They were planning a series of experiments for the morning. He