"Look out!" cried Dorothy, who noticed that the beautiful man did not
look where he was going; "be careful, or you'll fall off!"

But he paid no attention to her warning. He reached the edge of the
tall roof, stepped one foot out into the air, and walked into space as
calmly as if he were on firm ground.

The girl, greatly astonished, ran to lean over the edge of the roof,
and saw the man walking rapidly through the air toward the ground.
Soon he reached the street and disappeared through a glass doorway
into one of the glass buildings.

"How strange!" she exclaimed, drawing a long breath.

"Yes; but it's lots of fun, if it IS strange," remarked the small
voice of the kitten, and Dorothy turned to find her pet walking in the
air a foot or so away from the edge of the roof.

"Come back, Eureka!" she called, in distress, "you'll certainly be killed."

"I have nine lives," said the kitten, purring softly as it walked
around in a circle and then came back to the roof; "but I can't lose
even one of them by falling in this country, because I really couldn't
manage to fall if I wanted to."

"Does the air bear up your weight?" asked the girl.

"Of course; can't you see?" and again the kitten wandered into the air
and back to the edge of the roof.