"Which hand?"

The doctor looked at him quickly; then glanced once more at the dead woman.

"The right hand."

"You swear to that?"

"Undoubtedly I swear to it," said the doctor.

For the first time Billy Merton withdrew his right hand from his pocket, and held it out in front of him.

"The one mistake," he said, grimly.

The first, second, and third fingers were missing!

For a moment there was a deathly silence; then the doctor suddenly sprang forward.

"Stop him!" he roared.