"It's a bomb, sure enough," Craig exclaimed, looking up from it at last to me. "It's timed by an ingenious and noiseless little piece of clockwork, in there, too. And it's powerful enough to blow us all, the laboratory included, to kingdom come."
As he spoke, and before I could remonstrate with him, he took the infernal machine and placed it on a table where he set to work on the most delicate and dangerous piece of dissection of which I have ever heard.
Carefully unwrapping the bomb and unscrewing one part while he held another firm, he finally took out of it a bottle of liquid and some powder. Then he placed a few grains of the powder on a dish and dropped on it a drop or two of the liquid. There was a bright flash, as the powder ignited instantly.
"Just what I expected," commented Kennedy with a nod, as he examined the clever workmanship of the bomb.
One thing that interested him was that part of the contents had been wrapped in paper to keep them in place. This paper he was now carefully examining with a hand lens.
As nearly as I could make it out, the paper contained part of a typewritten chemical formula, which read:
TINCTURE OF IODINE
THREE PARTS OF—-
He looked up from his study of the microscope to Long Sin.
"Tell me just how it happened that you got this bomb," he asked.