“Two O. B.s! Isn’t that incredible, Mr. Gryce?”

“Yes, it is incredible; but the incredible is not the impossible. The man you’ve been shadowing denies that these expressive effusions of Miss Challoner were meant for him. Let us see, then, if we can find the man they were meant for.”

“The second O. B.?”

“Yes.”

Sweetwater’s face instantly lit up.

“Do you mean that I—after my egregious failure—am not to be kept on the dunce’s seat? That you will give me this new job?”

“Yes. We don’t know of a better man. It isn’t your fault, you said it yourself, that water couldn’t be squeezed out of a millstone.”

“The Superintendent—how does he feel about it?”

“He was the first one to mention you.”

“And the Inspector?”