There was no button beside this one, nor any other visible means of causing it to open.

Baffled, he turned again and looked at the large open window—and realized what it was that had made the room seem so queer.

It did not look like a jail cell. There were no bars....

Striding across the room, he lunged forward to peer out and violently banged his forehead. He staggered back, grimacing with pain, then reached forward cautious fingers and discovered a hard sheet of stuff so transparent that he had not even suspected its presence. Not glass! Glass was never this clear or strong. A plastic, no doubt, but one he hadn't heard of. Security sometimes had disadvantages.

He looked out at the peaceful vista of river and prairie. The character of the sunlight seemed to indicate that it was afternoon. He became aware that he was hungry.

Where the devil could this place be? And—muscles tightened about his empty stomach—what was in store for him here?

He stood trembling, acutely conscious that he was afraid and helpless, until a flicker of motion at the bottom of the hill near the river drew his attention. Pressing his nose against the window, he strained his eyes to see what it was.

A man and a woman were coming toward him up the hill. Evidently they had been swimming, for each had a towel; the man's was hung around his neck, and the woman was still drying her bobbed black hair.

Maitland speculated on the possibility that this might be Sweden; he didn't know of any other country where public bathing at this time of year was customary. However, that prairie certainly didn't look Scandinavian....

As they came closer, he saw that both of them had dark uniform suntans and showed striking muscular development, like persons who had trained for years with weights. They vanished below his field of view, presumably into the building.