“Does he mean business? What’s he after?”

“To get me out of the way. He knows he isn’t safe until I’m dead. Then he hasn’t been cleaned out, but he has lost a lot of money in this Midland business. The cipher he has is of no use to him, there, or in the other things which unluckily he knows about. With me dead and the cipher in his hands, he could have made millions; even without the cipher, if he knows I’m dead before the rest of the world, he ought to make at least a half-million. I think you will find that he has put everything he has on the chance. I told you he was slick. And unstable. What do you anticipate he will do? Straight, with no chaser, as you say.”

“Well, straight with no chaser, I should say a bomb was the meanest trick in sight, so, naturally, he will choose a bomb.”

“I agree with you. You say the house is patrolled?”

“The whole place. But we’ll put on a bigger force; I’ll see Birdsall at once. Atkins would have to hire his explosive talent, wouldn’t he?” questioned the colonel.

“Oh, he knows plenty of the under-world rascals; and besides, for a fellow of his habits, there is a big chance for loot. Mrs. Millicent Winter tells me that your aunt has valuable jewels with her. If she told me, she may have told other people, and Atkins may know. He will use other people, but he will come, too, in my opinion.”

“I see,” said the colonel; “to make sure they don’t foozle the bomb. But he’ll have his alibi ready all right. Mr. Keatcham, did they send you a previous letter?”

“Oh, dear no; that’s only part of the game; makes a better story. So is using the hotel paper; if it throws suspicion on anybody it would be your party; you see Atkins knew Mercer had a grudge against me as well as him. He was counting on that. I rather wonder that he didn’t fix up some proof for you to find.”

“By Jove!” cried the colonel; “maybe he did.”

“And you didn’t find it?”