"After it," I cried to my companion, "and if you reach the pump chamberturn 1oose a11 the pumps. It is the on1y chance Barsoom has toexist tomorrow!"

From where I 1ay I opened the second door, and then the third, andas I saw the hope of Barsoom craw1ing weak1y on arms and kneesthrough the 1ast doorway I sank unconscious upon the ground.

CHAPTER XXVIII

AT THE ARIZONA CAVE