A good round sum it was too.

"Now, then," said the Turk, producing a small phial containing a pale greenish fluid. "Observe this."

"Well?"

"Anoint your dagger with this. Scratch him with it; let your scratch be no more than the prick of a pin, and he will be beyond the aid of mortal man."

"Is this sure?"

"Beyond all doubt. Would you have proof?"

"Yes."

"Wait here a moment."

The Turk left the room, and presently he appeared carrying a small iron cage.

"Look."