The same woman who escorted us in takes my arm and guides me away. She does not speak as we walk. Distantly, I hear the drip of water and then what sounds like the ping of steel. It echoes again and again, a strange and incongruent tattoo.

We enter a circular cavern, black gems glimmering along its walls, and Cain steps from the shadows. Without thinking, I reach for my blade.

“Nay, Shrike.” Cain lifts a withered hand, and my own freezes. “There is no threat here.”

I force my hand away from my scim, casting about for something—anything—to distract me from my rage.

“What’s that sound?” I say of the strange ping-ping-ping. “It’s irritating.”

“Just the caves singing their stories,” Cain says. “A few are filled with crystal, others with water. Many are as tiny as houses, others are large enough to hold a city. But always, they sing. Some days we can hear the horns of the riverboats leaving Delphinium.”

“Delphinium is hundreds of miles away,” I say. Bleeding hells. I knew there were caves and tunnels under the city, but I didn’t know that the Augurs’ caves were so extensive. The land to the west of here is solid rock, the only caves inhabited by bears and wildcats. I assumed the mountains to the east are the same.

Cain watches me thoughtfully. “You are much changed, Blood Shrike. Your thoughts are closed.”

Satisfaction courses through me—I’ll have to tell Harper.

“Did the Meherya teach you, as he did the Farrars?” At my mystified look, Cain clarifies. “You refer to him as the Nightbringer.”

“No,” I snap, and then, “Why do you call him Meherya? Is that his name?”

“His name, his history, his birthright, his curse. The truth of all creatures, man or jinn, lies in their name. The Nightbringer’s name was his making. And it will be his unmaking.” He tilts his head. “Did you come to ask about the Nightbringer, Blood Shrike?”

“I have no desire to be here,” I say. “Marcus ordered my presence.”

“Ah. Let us make civil conversation then. Your sister—she is well? Soon to be a mother, of course.”

“If the Commandant doesn’t kill her first,” I say. “If she survives childbirth.” And even though I do not wish to, I seek the answer to those questions in his eyes. I find nothing.

He paces around the cave, and unwillingly I fall into step with him.

“The Tribespeople say that the heavens live under the feet of the mother,” he says. “So great is their sacrifice. And indeed no one suffers in war more than the mother. This war will be no different.”

“Are you saying Livia is going to suffer?” I want to shake the answer from him. “She’s safe now.”

Cain fixes me with his stare. “No one is safe. Have you not yet learned that lesson, Blood Shrike?” Though he sounds merely curious, I sense an insult in his words, and my fingers inch toward my war hammer.

“You wish to cause me pain,” Cain says. “But already, my every breath is torture. Long ago, I took something that did not belong to me. And I—and my kin—have spent every moment since paying for it.”

At my utter lack of sympathy, he sighs. “Soon enough, Blood Shrike,” he says, “you will see my brethren and me brought low. And you shall need no hammer nor blade, for we shall undo ourselves. The time to atone for our sins approaches.” His attention shifts to the hallway behind me. “As it does for your emperor.”

A moment later Marcus appears, face grim. I nod a curt goodbye to Cain. I hope I never bleeding see him again.

As we walk out of the tunnel and down to our men, clustered between boulders to escape the lashing rain, Marcus looks over at me.

“You will be in charge of the defense of the city,” Marcus says. “I will tell the generals.”

“Most of them are far more seasoned than I am at dealing with marauding armies, my lord.”

“The strength of the butcher bird is the strength of the Empire, for she is the torch against the night. Your line will rise or fall with her hammer; your fate will rise or fall with her will.”

When Marcus looks at me, I know for an instant how Cain must have felt when I looked at him. Pure hate radiates from the Emperor. And yet he is strangely diminished. He is not telling me everything the Augur said.

“Did—did the Augur say anything el—”

“That hag hasn’t been wrong yet,” Marcus says. “Not about me. Not about you. So whether you like it or not, Shrike, Antium’s defense is in your hands.”

It is deep night by the time we approach the northern gates to the capital. Teams of Plebeians fortify the walls, a legionnaire bellowing at them to work faster. The acrid reek of tar fills the air as soldiers lug buckets of it up ladders to the top of our defenses. Fletchers transport wagonloads of arrows divided into tubs for the archers to grab easily. Though the moon is high, it seems as if there is not a single sleeping soul in the city. Vendors hawk food and ale, and Scholar slaves carry water to those working.

This will not last. When the Karkauns come, the civilians will be forced to retreat into their homes to wait and see whether their brothers and fathers, uncles and cousins, sons and grandsons can hold the city. But in this moment, as all the people come together, unafraid, my heart swells. Come what may, I am glad I am here to fight with my people. And I am glad I am the Blood Shrike charged with leading the Martials to victory.