At the head of the column I rode beside the great Thark while at the heels of my mount trotted my beloved Woola.
We traveled entirely by night, timing our marches so that we camped during the day at deserted cities where, even to the beasts, we were all kept indoors during the daylight hours. On the march Tars Tarkas, through his remarkable ability and statesmanship, enlisted fifty thousand more warriors from various hordes, so that, ten days after we set out we halted at midnight outside the great walled city of Zodanga, one hundred and fifty thousand strong.
The fighting strength and efficiency of this horde of ferocious green monsters was equivalent to ten times their number of red men. Never in the history of Barsoom, Tars Tarkas told me, had such a force of green warriors marched to battle together. It was a monstrous task to keep even a semblance of harmony among them, and it was a marvel to me that he got them to the city without a mighty battle among themselves.
But as we neared Zodanga their personal quarrels were submerged by their greater hatred for the red men, and especially for the Zodangans, who had for years waged a ruthless campaign of extermination against the green men, directing special attention toward despoiling their incubators.
Now that we were before Zodanga the task of obtaining entry to the city devolved upon me, and directing Tars Tarkas to hold his forces in two divisions out of earshot of the city, with each division opposite a large gateway, I took twenty dismounted warriors and approached one of the small gates that pierced the walls at short intervals. These gates have no regular guard, but are covered by sentries, who patrol the avenue that encircles the city just within the walls as our metropolitan police patrol their beats.
The walls of Zodanga are seventy-five feet in height and fifty feet thick. They are built of enormous blocks of carborundum, and the task of