“Nothing at all. Wait though—”

Young Dr. Percy Baird looked at the slip again. “No, it would mean nothing to me,” he said finally.

“Thank you,” said the colonel.

He came out of the physician's office to find Jean Forette calmly reading in his side of the car. The paper was put away at once, and with a whirr from the self-starter the motor throbbed.

“It there a free public library in town, Jean?” asked the detective.

“Yes, monsieur.

“Take me there.”

The library was one built partly with the money donated by a celebrated millionaire, and contained a fair variety of books. To the main desk, behind which sat a pretty girl, marched Colonel Ashley.

“Have you any books on poisons?” he asked.

“Poisons?” She looked up at him, startled, a flush mantling her fair cheeks.