But by the time Jet pulled out of his fall, Alasklerbanbastos was plunging down at him, enormous claws poised to catch and rend.

Jet swooped one way and another, trying to get out from under the dracolich. Alasklerbanbastos matched him move for move. Aoth hurled flame from his spear. It splashed across the Bone Wyrm’s legs and ribs and must have been doing some harm. But the undead blue kept closing in.

Until an arrow plunged into his right eye socket.

Aoth suspected that the shaft hadn’t actually injured Alasklerbanbastos. But judging from the way he jerked, it must have at least startled him. And perhaps it was a maddening distraction to have it bouncing around inside his hollow skull. Because the next time Jet veered, the dracolich failed to compensate. The familiar streaked into the clear, and Alasklerbanbastos plunged on by.

Aoth glanced around and wasn’t surprised to spot Gaedynn grinning at him from Eider’s back. Though he’d been leading griffon riders for almost a hundred years, he’d met few archers who could have made that shot.

He was surprised at how many other griffon riders were coming on behind the redheaded scout, ready to aid their captain in his suicidal folly.

Their shafts fell on Alasklerbanbastos like rain and seemed to do as little harm. The dracolich shook his head, opened his jaws, and spat out Gaedynn’s arrow. Then he lashed his wings and climbed. The light in his eye sockets glowed brighter. Lightning crawled on him and leaped from one bone to another.

Aoth pointed his spear and rattled off words of command. A blade of emerald light leaped from the point of the weapon and streaked at the ascending dracolich. Guiding it with little shifts of his hand, trying to match Gaedynn’s accuracy, he made it hack repeatedly at the spot where Alasklerbanbastos’s left wing connected to the shoulder bone.

Alasklerbanbastos twisted his head to regard the sword of light. No doubt to get rid of it before it accomplished its purpose. But then Meralaine recited an incantation. Her voice was a girl’s voice, high and breathy, yet the charge of dark magic it carried made it seem somehow cold and leaden, as well as enabling a fellow mage to catch the sound even across the sky. Though Aoth didn’t take his eyes off Alasklerbanbastos to look for her, he surmised that the necromancer had persuaded some griffon rider to carry her aloft.

Her spell made the dracolich hesitate. Only for a heartbeat, but in that instant, the flying blade accomplished its task. The wing broke away from the body. The Bone Wyrm started to fall-

— and then stopped.

Because, Aoth realized, while wings helped Alasklerbanbastos maneuver across the sky, it was ultimately magic that held him up. As it was still supporting him, while the wing also stopped tumbling and floated upward again.

But the wretched creature had to fall! In desperation, Aoth shouted an incantation intended to shred enchantments to nothing. He didn’t know if it had any chance of working, but it was the only idea he had. Meralaine joined in on the first refrain, reinforcing his power with her own.

Alasklerbanbastos plummeted again, and this time fell all the way down to the ground.

Aoth prayed to Kossuth that the dracolich would smash apart, but the Lord of Flame apparently didn’t hear. Although Alasklerbanbastos hit hard enough to snap some bones and jolt others loose from their couplings, the damage looked relatively superficial. Worse, either because of some innate capacity or because he used enchantment, he instantly started to mend. Pieces of bone, the severed wing included, flew through the air to reunite with his body.

Curse it! thought Aoth. The thing seemed as unstoppable as Szass Tam himself.

Alasklerbanbastos flexed his legs and spread his wings. Then his head whipped around as a flash snagged his attention.

Jhesrhi was on the ground near Tchazzar, casting flame from her staff to burn away the web of darkness. Maybe to restore his strength as well, as she had in the Shadowfell.

Alasklerbanbastos took a first stride in her direction. Jet furled his wings and dived at the dracolich. Aoth hurled darts of scarlet light that stabbed into the undead dragon’s spine but failed to divert him from his purpose.

Springing from the ground, Scar flung himself at Alasklerbanbastos. Who snapped him out of the air and gnashed him into pieces.

Eider plunged down on top of the dracolich and began to tear with her talons. Alasklerbanbastos shook himself like a wet dog and sent the griffon and her rider tumbling.

Oraxes hurled his own darts of light. Lances leveled, Shala and Hasos galloped at the undead blue. Soldiers rushed in, swinging axes and jabbing with spears.

Still intent on Tchazzar and Jhesrhi, Alasklerbanbastos didn’t so much fight the other opponents seeking to bar the way as simply wade through them. Unfortunately, he seemed to do it almost as easily as Aoth could have walked through a puddle. Meanwhile, Jhesrhi stood her ground and threw fire from the staff. She plainly meant to free Tchazzar or die trying.

Put me on top of him, said Aoth. Right where Eider landed.

All right, said Jet, but I don’t promise that I’ll be able to hold on either.

You don’t have to. Just set me there. Aoth willed the straps that held him in the saddle to unbuckle, and they did. He released the magic bound in every protective tattoo on his body.

Then Jet thumped down. Aoth swung himself off the familiar’s back, grabbed a knob of bone, and shouted, “Go!” With a reluctance that throbbed across their psychic link, the familiar lashed his wings and took off again. Aoth charged his spear with raw force and stabbed at sections of rib that-he hoped-Gaedynn’s mount had already weakened.

Pieces of two adjacent ribs snapped loose and fell away. Aoth jammed himself feet first into the breach he’d created. It was a tight squeeze, and a jagged tip of broken bone scratched his cheek. But then, releasing the charm bound in another tattoo to soften the fall, he dropped inside.

Where he found it all but impossible to stand. The dracolich’s motion bounced him around, and the bottom of the rib cage was like a floor with planks missing. Small lightning bolts crackled across the space he occupied, stinging and jolting him. They’d do worse than that once they wore away his protective enchantments.

He grabbed a rib to find and keep his balance, released the remaining energy in the spear, and jabbed at the curves of bone around him. If Tymora smiled, maybe Alasklerbanbastos would find the assault from the inside as difficult to ignore as Gaedynn’s arrow rattling around in his head.

For two or three heartbeats, that didn’t appear to be the case. But then the dracolich whirled around like a hound chasing its tail. Head bent backward at the end of his long neck, he glared at the pest infesting his core.

“Not this time,” said Aoth. He made sure he didn’t meet the Bone Wyrm’s gaze. And wished the creature didn’t have a hundred other ways of attacking him.

Alasklerbanbastos’s fleshless jaws opened. Aoth shouted a word of defense, and the world blazed white.

Medrash’s vision had cleared, and to a degree so had his thoughts. He could see and understand what was happening before him, and that was hellish. Because his friends and comrades needed him.

Chopping with his urgrosh, or jabbing with the spike on the butt, Khouryn was fighting as brilliantly as any warrior Medrash had ever seen. Grinning, shouting taunts, waiting until the last possible instant to dance out of the way of an attack in order to land a counterstroke, Balasar was equally superb. And they had help. Dragonborn kept streaming into the heart of Ashhold. Bat riders wheeled and swooped overhead, hurling javelins or thrusting with lances and polearms. Some of the mages had arrived as well. Cloaked in a protective blur, Biri hurled bursts of frost from her rose quartz wand.