It was Agnes.
As her cries echoed through the church, Justus and I flew from his cot. We raced side-by-side down the corridor and into the nave. It was still day. Tinted sunlight blazed through the stained-glass windows of the apse. Agnes was lying in the aisle, halfway between the altar and the door of the narthex. She was clutching her throat, her ancient lungs giving birth to a surprising loud shriek. Kneeling over her, wiping his lips on his sleeve, was Lukas.
"No!" Justus roared.
Lukas's head jerked up as we sped toward him, eyes oozing black. He leapt to his feet and bolted down the aisle, vanishing with a bang out the front door of the church.
We did not pursue him, but knelt down over the screaming woman.
"Agnes!" Justus moaned, checking her body for injury-- her throat, her limbs. There were no bite wounds. "What did he do to you, Agnes?"
The old woman drew a breath, either to speak or howl in pain some more, and then she choked, her throat convulsing, her back arching off the floor. Her arthritic fingers scrabbled at Justus's bare chest. Her eyes stared blankly at the vaulted ceiling. And then her flesh began to blanch.
I realized what Lukas had done then and gasped, "Ancestors, no!"
"What is it, Agnes? What is wrong?" Justus shouted. He was confused. He couldn't find any injuries. He hadn't yet realized what Lukas had done to her.
Then he saw the fangs sliding from her gums, gums that hadn't hosted natural teeth in at least a decade.
Tears welled in his eyes. "Oh… Oh, Agnes," he moaned, sitting back.
"Justus, it hurts!" Agnes whimpered, the timbre of her voice changing as the living blood worked its way through her body, as it transformed her, one aged cell after another.
Justus shook his head. "No, no, no…"
"He snuck up behind me," Agnes wheezed, writhing helplessly on the floor. "Forced me to drink his blood!" The Strix reached her eyes, and they grew glassy, began to twinkle in the sunlight like jewels. Her fangs were fully grown now, narrow and sharp, like long white thorns. "Oh, it hurts!"
"Get out," Justus said to me.
"Justus, I'm so sorry."
"I said get out!" he shouted.
I rose. Reached out to my one-time companion.
He struck my hand away. "Please… just go, Gyozo. Go find your acolyte before he harms anyone else. This is not your fault. This is that little monster's doing. But go. Go away."
I nodded and started for the door.
"Just know," he called after me. "When you are dead and gone… I am going to hunt him down and destroy him."
I paused to look back. Agnes, flesh white, eyes glinting, fangs very long and sharp, continued to thrash beside him.
"Good," I said.