He hurried over to me and looked. We could both see in the busybody mirror a group of excited passersby bending over a man lying prostrate on the sidewalk.

He had evidently been standing on the curbstone outside the laboratory and had suddenly put his hand to his forehead. Then he had literally crumpled up into a heap, as he sank to the ground.

The excited crowd lifted him up and bore him away, and I turned in surprise to Craig. He was looking at his watch.

It was now only a few moments past nine o'clock!

Not quarter of an hour later, our door was excitedly flung open and
Elaine and Perry Bennett arrived.

"I've just heard of the accident," she cried, fearfully. "Isn't it terrible. What had we better do?"

For a few moments no one said a word. Then Kennedy began carefully examining the bolometer and some other recording instruments he had, while the rest of us watched, fascinated.

Somehow that "busybody" seemed to attract me. I could not resist looking into it from time to time as Kennedy worked.

I was scarcely able to control my excitement when, again, I saw the same scene enacted on the sidewalk before the laboratory. Hurriedly I looked at my watch. It was ten o'clock!

"Craig!" I cried. "Another!"