With Long Sin we hurried out of the laboratory, leaving him at the nearest taxicab stand, where we jumped into a waiting car.
"It is the clue of the battered 'T's,'" Craig muttered.
. . . . . . . .
Aunt Josephine was in the library knitting when the butler, Jennings, announced us. We were admitted at once, for Aunt Josephine had never quite understood what was the trouble between Elaine and Craig, and had a high regard for him.
"Where is—Miss Dodge?" inquired Kennedy, with suppressed excitement as we entered.
"I think she's out shopping and I don't know just when she will be back," answered Aunt Josephine, with some surprise. "Why? Is it anything important—any news?"
"Very important," returned Kennedy excitedly. "I think I have the best clue yet. Only—it will be necessary to look through some of the household correspondence immediately to see whether there are certain letters. I wouldn't be surprised if she had some—perhaps not very personal—but I MUST see them."
Aunt Josephine seemed nonplussed at first. I thought she was going to refuse to allow Craig to proceed. But finally she assented.
Kennedy lost no time. He went to a desk where Elaine generally sat, and quickly took out several typewritten letters. He examined them closely, rejecting one after another, until finally he came to one that seemed to interest him.
He separated it from the rest and fell to studying it, comparing it with the paper from the bomb and the note which Long Sin had received from the Clutching Hand. Then he folded the letter so that both the signature and the address could not be read by us.