Those jaws came free of Abraxos’s neck, and then they were falling, twisting.

Manon had enough sense to grab onto the saddle, to cling with everything she had as the wind threatened to tear her from him.

His blood streamed upward as they fell, but then his wings spread wide, and he was banking, flapping up. He steadied enough that Manon swung into the saddle, strapping herself in as she whirled to see what had occurred behind her. Who had saved them.

It was not Asterin.

It was not any of the Thirteen.

But Petrah Blueblood.

And behind the Heir to the Blueblood Witch-Clan, now slamming into Morath’s aerial legion from where they’d crept onto the battlefield from high above the clouds, were the Ironteeth.

Hundreds of them.

Hundreds of Ironteeth witches and their wyverns crashed into their own.

Petrah and Iskra pulled apart, the Blueblood Heir flapping toward Manon while Abraxos fought to stay upright.

Even with the wind, the battle, Manon still heard Petrah as the Blueblood Heir said to her, “A better world.”

Manon had no words. None, other than to look toward the city wall, to the force trying to enter through the river grates. “The walls—”

“Go.” Then Petrah pointed to where Iskra had paused in midair to gape at what unfolded. At the act of defiance and rebellion so unthinkable that many of the Morath Ironteeth were equally stunned. Petrah bared her teeth, revealing iron glinting in the watery sunlight. “She’s mine.”

Manon glanced between the city walls and Iskra, turning toward them once more. Two against one, and they would surely smash her to bits—

“Go,” Petrah snarled. And when Manon again hesitated, Petrah only said, “For Keelie.”

For the wyvern Petrah had loved—as Manon loved Abraxos. Who had fought for Petrah to her last breath, while Iskra’s bull slaughtered her.

So Manon nodded. “Darkness embrace you.”

Abraxos began soaring for the wall, his wingbeats unsteady, his breathing shallow.

He needed to rest, needed to see a healer—

Manon glanced behind her just as Petrah slammed into Iskra.

The two Heirs went tumbling toward the earth, clashing again, wyverns striking.

Manon couldn’t turn away if she wished.

Not as the wyverns peeled apart and then banked, executing perfect, razor-sharp turns that had them meeting once more, rising up into the sky, tails snapping as they locked talons.

Up and up, Iskra and Petrah flew. Wyverns slashing and biting, claws locking, jaws snapping. Up through the levels of fighting in the skies, up through Crochans and Ironteeth, up through the wisps of clouds.

A race, a mockery of the mating dance of the wyverns, to rise to the highest point of the sky and then plummet down to the earth as one.

Ironteeth halted their fighting. Crochans stilled in midair. Even on the battlefield, Morath soldiers looked up.

The two Heirs shot higher and higher and higher. And when they reached a place where even the wyverns could not draw enough air into their lungs, they tucked in their wings, locked claws, and plunged headfirst toward the earth.

Manon saw the trap before Iskra did.

Saw it the moment Petrah broke free, golden hair streaming as she drew her sword and her wyvern began to circle.

Tight, precise circles around Iskra and her bull as they plummeted.

So tight that Iskra’s bull did not have the space to open its wings. And when it tried, Petrah’s wyvern was there, tail or jaws snapping. When it tried, Petrah’s sword was there, slashing ribbons into the beast.

Iskra realized it then.

Realized it as they fell and fell and fell, and Petrah circled them, so fast that Manon wondered if the Blueblood Heir had been practicing these months, training for this very moment.

For the vengeance owed to her and Keelie.

The very world seemed to pause.

Petrah and her wyvern circled and circled, blood from Iskra’s wyvern raining upward, the beast more frantic with every foot closer to the earth.

But Petrah had not opened her wyvern’s wings, either. Had not pulled on the reins to bank her mount.

“Pull out,” Manon breathed. “Bank now.”

Petrah did not. Two wyverns dropped toward the earth, dark stars falling from the sky.

“Stop,” Iskra barked.

Petrah didn’t deign to respond.

They couldn’t bank at that speed. And soon Petrah wouldn’t be able to bank at all. Would break herself on the ground, right alongside Iskra.

“Stop!” Fear turned Iskra’s order into a sharp cry.

No pity for her kindled in Manon. None at all.

The ground neared, brutal and unyielding.

“You mad bitch, I said stop!”

Two hundred feet to the earth. Then a hundred. Manon couldn’t get down a breath.

Fifty feet.

And as the ground seemed to rise to meet them, Manon heard Petrah’s only words to Iskra like they had been carried on the wind.

“For Keelie.”

Petrah’s wyvern flung out its wings, banking sharper than any wyvern Manon had ever witnessed. Rising up, wing tip grazing the icy ground before it shot back into the skies.

Leaving Iskra and her bull to splatter on the earth.

The boom rumbled past Manon, thundering through the world.

Iskra and her bull did not rise again.

Abraxos gave a groan of pain, and Manon twisted in the saddle, her heart raging.

Iskra was dead. The Yellowlegs Heir was dead.

It didn’t fill her with the joy it should have. Not with that vulnerable grate on the city wall under attack.

So she snapped the reins, and Abraxos soared for the city walls, and then Sorrel and Vesta were beside her, Asterin coming in fast from behind. They flew low, beneath the Ironteeth now fighting Ironteeth, the Ironteeth still fighting Crochans. Aiming for the spots where the river flowed right up to their sides.

Already, a longboat had reached them. Already, arrows were flying from the small grate—guards frantic to keep the enemy at bay.

The Morath soldiers were so preoccupied with their target ahead that they did not look behind until Abraxos was upon them.

His blood streamed past her as he landed, snapping with talons and teeth and tail. Sorrel and Vesta took care of the others, the longboat soon in splinters.

But it was not enough. Not even close.

“The rocks,” Manon breathed, steering Abraxos toward the other side of the river.

He understood. Her heart strained to the point of agony at pushing him, but he soared to the other side of the river and hauled one of the smaller boulders back across. The Thirteen saw her plan and followed, swift and unfaltering.

Every one of his wingbeats was slower than the last. He lost height with each foot they crossed the river.

But then he made it, just as another group of Morath soldiers were trying to enter the small, vulnerable passage. Manon slammed the stone into the water before it. The Thirteen dropped their stones as well, the splashes carrying over the city walls.

More and more, each trip across the river slower than the last.

But then there were rocks piled up, breaking the surface. Then rising above it, blocking out all access to the river tunnel. Just high enough to seal it over—but not give a leg up to the Morath soldiers swarming on the other bank.

Abraxos’s breathing was labored, his head sagging.

Manon twisted in the saddle to order her Second to halt piling the rocks, but Asterin had already done so. Her Second pointed to the city walls above them. “Get inside!”