Milbun let out a slow whistle. "_Dismounted_ it. Boy!"

"A one-bite, too," breathed Mavis.

Mrs. Milbun came over and looked at Dan approvingly.

Dan had been about to apologize, but checked himself when the others

smiled cheerfully and went back to what they were doing. This consisted

of dodging, tricking or outrunning the various contraptions that lunged

at them, chased them, tripped them, trailed, stalked and sprang out at

them from nearly every place in the room.

Finally the gym began to fill up with other people. The Milbuns got

ready to leave and Dan followed.

* * * * *

Dan lay in his bed that night and tried to summarize the points he

didn't understand. First was the question of vacation. But he supposed

he would learn about that tomorrow. Next was "charge." Apparently

one went on vacation when his "charge" was low, because the vacation

advisor had said, "The family put their vacation off for her, and as a

result their charge has run very low." But just what was "charge"?

Dan remembered the flickering bulb in the store window, ringed by

the words "Your Corrected Charge--Courtesy of Save-Your-Life Co."

Apparently he had _some_ charge, because the bulb had flickered. But

where did he get it?

Then he thought of the waterfront and of the little boy caught at the

hole. What was the point of that? And why did that produce such an

uproar when, a little later, a grown man could get dragged out of sight

on a well-traveled street and never cause a single notice?

Dan felt himself sinking into a maze of confusion. He dismissed the

problems and went to sleep clinging to one fact. The Porcyns _must_ be

honest people who would keep an agreement, once made. On what other

planet could anyone find a slot machine with no slot, but just an open

box for the money?

Dan fell asleep, content that he had the answer to that part of the

problem, at least.

Before it was light, he awoke to an odd familiar buzz inside his head.

"Dan," said Kielgaard's voice, small and remote.

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