Of course, they were not content with this performance. Each time the machine moved back and forth along the line, the men continued to tweak its angles and pitch. Sometimes, the Master would pause to grab up his notebook and make a note or a sketch. For my part, I stood to one side, handing either man the tools they needed and generally staying out of the way. But, watching their progress, my certainty increased that a functional, man-sized version of the craft was possible.
Half of the morning had passed before the garden-again and perhaps inexorably-became a scene of a new tragedy. The disturbance began outside its crumbling walls, however. So intent were all of us on our work that it took a moment for the cries to register upon our ears.
“Master, Master!” a frantic voice was calling, the words faint yet growing louder with every repetition.
My heart gave a lurch at the sound. Surely it must be one of my fellow apprentices crying for help, I told myself, or the shout would have been a summons for Signor Leonardo, instead.
Leonardo dropped his notebook and, my father and I on his heels, rushed to the barred gate. He unfastened the catch with haste and threw it open. No one stood outside it, however. Frantically, we abandoned that tack and scanned the garden, looking for the source of that frightened sound.
“There!” I cried, my attention caught by a movement atop the wall.
It was at the very spot where Tommaso and I had scaled the stone barrier to hide within the olive trees’ twisted branches. The climb had been slow and more than a bit painful, the rough stones scraping bare flesh and tearing at trunk hose and tunic. Still, anyone agile enough-certainly, any of the apprentices-could make the ascent.
I glimpsed a familiar brown tunic over green trunk hose as a youth scaled the wall and balanced atop it. I could not make out his face for the tangle of branches blocking my view, but it was certainly one of my fellows. He stood unmoving for an instant; then, with a sharp cry of pain, his body jerked.
I gave an answering cry as I watched him sway there for what seemed a lifetime, though it would have been but the space of a few heartbeats. Finally, with an uncertain flapping of his arms that uncannily resembled the motion of the flying machine, the youth tumbled from the wall to land in a heap at the foot of the olive tree.
As one, we rushed toward him.
Leonardo reached him first, carefully gathering him into his arms. As he did so, I saw that a bloody stain was rapidly spreading down the back of the youth’s tunic. And, to my horror, I glimpsed something that resembled a small arrow lodged between his shoulder blades. The youth stirred restlessly in Leonardo’s arms, and I heard a final breathless gasp.
“Master,” he managed once more, and sagged into stillness.
His head lolled toward me, so that I had my first glimpse of his face. At the sight, I dropped to my knees as if struck, frantically wishing I could scrub the image from my mind but unable to tear my gaze from the waxen features of my friend.
Vaguely, I was aware of my father kneeling beside me and placing one hand protectively upon my shoulder. Softly, he asked, “Do you know this boy?”
“Y-yes,” I choked out, the word rough with tears that I did not bother to hide. “He is our senior apprentice, Constantin.”
I stared down at Constantin’s white face, his half-open eyes staring sightlessly over my shoulder, and did not need to ask if he was dead. Still, disbelief filled my heart. How could he be alive one moment and his life cruelly snuffed in the next? Surely it was not possible!
Leonardo was the fi rst to stir from the momentary paralysis that gripped us.
“Quickly, we must run the assailant to ground. The murder weapon was a crossbow, which means the killer likely was near the garden wall when he shot Constantin. There is still a chance we may catch him fleeing his crime!”
Barely had the words left Leonardo’s lips than my father was sprinting toward the open gate with a speed I never knew he possessed. I scrambled to my feet and rushed after him, my own feet hardly touching the ground in my haste.
It occurred to me as I ran that perhaps I should be fearful. Constantin’s murderer would have had time to span his crossbow with a new bolt and could easily fire upon me or my father once he saw us in pursuit. But any fright I might have felt at my own potential danger was consumed by the righteous fury that seemed to roar through my veins.
I burst past the garden’s gate to see that the quadrangle before me bustled with court activity, as usual. Panting while my ribs struggled against my confining undergarment, I halted for a sweeping glance across the expanse of green lawn, looking for a man in flight. The only one moving at a rapid pace, however, was my father. He was headed toward the main gate but in pursuit of no one in particular, though several people had stopped in their tracks to stare after him. I gave a despairing little groan. Had the killer already escaped us?