door he met a clerk coming in.

"Where is Miss Mitchell?" demanded the financier hotly.

"I was just coming to tell you that she went out with Miss Winthrop just now without giving any explanation," replied the clerk.

"Good day, Mr. Grayson," said The Thinking Machine.

The financier nodded his thanks, then stalked back into his room.

In the course of time The Thinking Machine received a check for ten thousand dollars, signed, "J. Morgan Grayson." He glared at it for a little while, then indorsed it in a crabbed hand, Pay to the Trustees' Home for Crippled Children, and sent Martha, his housekeeper, out to mail it.