"That's the Hawk!" laughed Tom; "though that tickling business you speak of is when I spiral. Don't you like it?"

"Can't say I do," observed Mr. Damon dryly.

"Well, I'll promise not to try any stunts if you come along," Tom went on.

"Where are you going?" asked his friend.

"Oh, no place in particular. As you surmised, I've been doing a bit of thinking, and—"

"Serious thinking, too, Tom!" interrupted Mr. Damon. "Excuse me, but I couldn't help overhearing what you said. It was something about going to do something though you didn't want to, and that it was part of your 'bit'. That sounds like soldier talk. Are you going to enlist, Tom?"

"No."

"Um! Well, then—"

"It's something I can't talk about, Mr. Damon, even to you, as yet," Tom said, and there was a new quality in his voice, at which his friend looked up in some surprise.

"Oh, of course, Tom, if it's a secret—"