Glancing to the south, he could see barges making their slow way up the Jamuna river to the temporary docks which the Malwa had erected to offload their provisions. Each of those barges weighed three to six hundred tons—the size of the average sea-going craft of the Mediterranean world. They were hauling food and provisions from the whole of northern India, produced by the toil of the uncountable multitude of Malwa subject peoples.
In addition to the freight barges there were a number of equal-sized, but vastly more luxurious, barges moored to the south bank of the Jamuna. These were the accommodations for the Malwa nobility and high officials. And, here and there, Menander could see slim oared craft, as well, moving much more rapidly. The galleys were powered by fifty or so rowers, with additional troops aboard. The Malwa maintained a careful patrol of the river, closing Ranapur's access to water traffic.
Most of all, Menander's gaze was drawn by the huge bronze cannons which were bombarding Ranapur. He could see eight of them from the slight rise in the landscape where he and the other Romans were watching the siege. Each of the cannons was positioned on a stone surface, surrounded by a low berm, and tended by a small horde of soldiers and laborers.
"Magical, almost," he concluded softly.
Belisarius shook his head. "There's nothing magical about them, lad. It's just metalworking and chemistry, that's all. And, as I said, crude and primitive metalworking and chemistry."
The general cast his eyes about. Their large Rajput escort was not far away, but still out of hearing range.
Belisarius leaned forward in his saddle. When he spoke, his voice was low and intent. He spoke loud enough for all three of his cataphracts to hear him, but his principal audience was Menander. Out of all the hundreds of cataphracts who constituted Belisarius' bucellarii, his personal retinue of elite soldiers, there were none so deadly as Valentinian and Anastasius. That was why he had selected them to accompany him on his dangerous mission to India. But, for all their battle skills, neither of the veterans was really suited for the task of assessing a radically new situation. Young Menander, even with more experience, would never be Anastasius or Valentinian's equal as a warrior. But he was proving to be much quicker to absorb the new realities which the Malwa were introducing into warfare.
"Listen to me, all of you. I may not survive this journey. Whatever happens, it is essential that at least one of us return to Rome with what we've learned, and get the information to Antonina and John of Rhodes."
Valentinian began to make some little protest, but Belisarius waved him down.
"That's stupid, Valentinian, and you know it better than anyone. A thousand things can kill you on the field of battle—or off it—and I'm no more immune to them than anyone. What is important is the information."
He glanced again in the direction of the Rajputs, but the cavalrymen were still maintaining a polite distance.
"I've already explained to you how the cannons work," he said. He cocked an eye at Menander. The young Thracian immediately recited the formula for gunpowder and the complex series of steps by which it was properly prepared. His words had the singsong character of one repeating oft-memorized data.
Belisarius nodded. "It's the wetting and the grinding that's key. Remember that." He made a small nodding gesture toward the distant cannons. "The Malwa gunpowder is really pretty poor stuff, compared to what's possible. And so is their metalworking."
Examining one of the cannons, he sat slightly straighter in his saddle.
"Watch," he commanded. "They're about to fire. Watch the trajectory of the cannonball."
Menander and the other two cataphracts followed his gaze. A moment later, they saw one of the Malwa soldiers take a long iron bar out of a small forge. The bar was bent ninety degrees at the tip, and the protruding two inches glowed red from heat. Gingerly, he inserted the firing bar into a small hole in the breach of the cannon. The mouth of the cannon belched a huge cloud of smoke, followed almost instantly by the roaring sound of the blast.
The recoil jerked the cannon back into its cradle. Menander saw the gunner lose his grip on the firing bar. The bar was spun against another of the Malwa soldiers, who backed up hastily, frantic to avoid the still-glowing tip. Menander did not envy the Malwa gunners. Theirs was a risky task. Two days earlier, he had seen a recoiling cannon shatter its cradle and crush one of its gunners.
Menander and the other Romans followed the cannonball's trajectory all the way to its impact against the great wall of Ranapur. Even from the distance, they could see the wall shiver, and pieces of brickwork splinter and fall to the ground.