"Sure, you'll never catch me jumping!"

"Gentlemen," the Master said, in a low, quiet voice, "I regret to state that we have one coward among us."

CHAPTER XLVIII

THE RIVER OF NIGHT

The major's clenched fist was caught as it drove, by a scientific guard from the Master's right. The Master dropped his lamp, and with a straight left-hander sprawled Bohannan on the slimy pave. Impersonally he stood over the crazed Celt.

"Will you jump, voluntarily," demanded he, "or shall we be under the painful necessity of having to throw you down that pit?"

Enough rationality remained in the major to spur his pride. He crawled to his feet, chastened.

"You win, sir," he answered. "Who goes first?"

A dull reverberation shuddered the rock, the air.

"Vive Nissr!" exulted Leclair. "Ah, now our men, they attack the city!"