The Rootmind hit Chris harder than anything before it.
Two fronts. Northern battle still grinding — inner kill zones chewing through Imperial soldiers, the Ent wall taking hits, the whole defense machine running on fumes and rage. Now a second front tearing open on the southern edge, completely unscripted, and Chris had no framework for it. He pushed deeper into the network, past the throb behind his eyes, and the shapes resolved slowly — centaurs, the Rootmind registering them differently from humans. Heavier. Weight spread across four points instead of two. Hooves striking the ground in a pattern the network tracked like drumbeats.
Fast. Faster than anything else on the field.
Coordinated bursts. Hit the Imperial flank, pull back before the soldiers could form a response. Hit and run. Over and over.
The Empire's response came apart. Soldiers who'd been facing north turned south and found themselves caught between the village's defenses and the centaur assault. Mages redirected fire toward the new threat — every spell sent south was a spell not hitting the Ent walls. Formations broke. Officers shouted orders into the noise, their voices swallowed half the time. The siege effort devolved into something ragged.
Through the Rootmind the battle unspooled at a distance. Sounds muffled. The centaurs fought like predators working a herd — isolating groups, driving them apart, picking off anyone who strayed too far. Each rider anticipated where the others would strike before they got there.
"Do you have any idea what that is?" Sera stood below the wall. Blood on her sword. A cut above her left eye she hadn't tended — dried blood in a dark line down her cheek. She was staring south.
Korr was already looking. "Centaurs." He said the word slowly, tasting it. "Haven't seen centaurs in decades. Didn't think there were any herds left this side of the Equion border."
"They're fighting the Empire." Sera's arms crossed.
"Whoever was in front of them when they decided to charge." Korr's eyes stayed on the southern battle. "That's not the same thing as fighting for us."
A lull settled over the northern assault. Not a ceasefire — Imperial soldiers still pressed the inner kill zones — but the intensity bled off. Officers pulled units back and redirected them south. Siege towers stopped. Mage fire on the Ent wall thinned to sporadic bursts.
Chris used the lull to breathe. His hands trembled against the stone. A copper taste coated the back of his throat, thick enough that swallowing didn't clear it. One of the ghost plants on the inner wall was flickering — its glow pulsing in uneven bursts like a candle in wind, though there was no wind. Water. Sleep. Neither was coming.
A shape approached from the south through the thinning smoke.
Massive. Moving slowly — not galloping like the others. Walking with the heavy, measured gait of someone trying to look non-threatening despite being built like a siege engine. Alone. Hands raised, palms out. No weapons.
"Should I put an arrow in him?" Mira had a bow. Her aim was steady, the bowstring pulled back to her cheek, and Chris didn't know where she'd gotten either.
"No. Keep it ready but don't shoot." He was already moving toward the gate.
Korr caught his arm. "You're not going out there alone."
"He's coming under truce."
"Truces are broken. Routinely." But he was already following Chris down from the wall.
The centaur elder stopped at the edge of the mist.
Up close, he was older than expected. Human torso thick with muscle gone slightly soft — scars mapping his chest and arms in pale ridges that caught the firelight. Equine body dappled grey, coat patchy where old wounds had healed badly. One hind leg bore a ring of scar tissue above the hoof, thick and ridged like old rope burn. The smell hit next — horse sweat and something earthier underneath, like soil after rain, though it hadn't rained in the Barrens for longer than Chris had been alive. Face lined and weathered. Eyes dark, set deep in their sockets.
"Green Bringer." The voice was deep, rough. Gravel dragged across wood.
"That's not what I'm called."
"It's what you are." The elder's gaze drifted past Chris to the village behind him — the Ent walls, the fog, the ghost plants glowing pale against scorched bark. His nostrils flared. The slump in his shoulders straightened, his neck tensing — then he let it go.
"Why are you here?"
No answer right away. His tail switched against his flanks, flicking away flies that weren't there. Behind them, a thorn vine along the gate's frame curled slowly, testing the centaur's scent on the air. Not human. Not Imperial. Something the network had no category for.
"Our herds are dying."
The battle still rumbled in the distance, muffled by mist and walls, but here at the gate it sat apart. Smoke and blood on the wind. Someone screaming far enough away that the words didn't come through.
"The southern plains can't sustain us anymore." Each word came out like it was being pulled. "They haven't been able to for years, but we held on because holding on is what herds do. The empires — yours, the one to the south, all of them — they've been pushing borders for decades. Burning the grasslands. Draining the water. Chasing our grazing grounds further into the grey."
The Rootmind pushed the southern plains to the front of Chris's mind. Emptiness beyond the village perimeter. Soil turning inert and grey a few miles out. He'd walked those plains. They'd always looked dead to him.
"You've seen it." The elder's scar tissue pulled white along his jaw. "Dead. Grey. Nothing grows. That used to be grass." His tail flicked — harder this time, a sharp crack against his flank. "Dust and bones now."
"We've been watching you. For weeks. My scouts reported a settlement in the deep Barrens where things were growing — not just surviving, thriving. Green where there should be grey. Water where there should be dust."
A pause. "I didn't believe them."
His gaze swept the village again. The world tree's sapling near the center, its thick root coil visible even from this distance. The Rootmind stirred — sapling leaves shifting, a pulse of warmth rolling outward like a slow breath.
"Then I came to see for myself."
"This is our last gamble." Flat. A man reading a ledger that showed nothing but debts. "We don't have enough fighters to win a war. Perhaps two hundred. Not enough to turn a battle. Enough to matter. Enough to hit a flank. Enough to make the difference between holding and falling."
Korr had shifted. He stood where he could watch both the elder and the southern horizon, hand on his sword hilt. The old demon's weight had settled into his back legs — the stance of something that could explode in any direction and was choosing not to.
"Why should we trust you?" Korr asked. "You show up in the middle of a battle and hit the Empire's flank. Convenient timing."
The elder looked at him. "Because if I wanted you dead, I would've hit your wall instead of theirs."
"We're not here for conquest. Not here for territory or resources. Not any of the things the empires kill each other over." The elder turned back to Chris. "We're here because we have foals. Young ones. They need somewhere to grow up that isn't turning grey and dead around them."
His voice broke on the last word. Just barely. Just enough. He stood very still for a moment, jaw tight, and then kept talking as if it hadn't happened.
"So. Will you let us fight alongside you? Or do we take our two hundred riders and disappear back into the grey, and hope the Empire doesn't decide we're worth hunting after they're done with you?"
Chris looked at Korr. His hand had eased slightly off his sword. A small nod.
Sera had made it to the wall above the gate. She caught Chris's eye and shrugged one shoulder.
"We could use the help," Chris said.
The lines around the elder's mouth eased. His shoulders dropped a fraction.
"Two hundred riders. We fight your enemies, we protect our own, and when this is over — if there's an after — we talk about terms. Grazing land. Water. A place for the foals."
Chris nodded. "We can talk about it."
"Good enough." The elder turned, pivoting with surprising grace for something his size. One step back toward the southern approach, then he stopped. "One thing."
"What?"
"Your plants." He gestured vaguely at the walls, the fog, the green visible through the smoke. "They're different from anything we've seen. The way they move. The way they react. It's like they're alive."
"They are alive."
The elder stared at him. Then a sound — short, rough. A laugh from someone who hadn't made one in years.
"Yes. I suppose they are."
He walked back toward the southern dust at an easy canter. One of the younger riders broke formation to fall in beside him — the two of them disappearing into the haze together, voices too low to carry.
The centaurs didn't come through the gate. They spread along the southern and eastern approaches instead — a mobile screen between the village and the Empire's disrupted flank. Riders in pairs, speed and height against any soldier who strayed. Each hoofbeat pulsed through the Rootmind like a second heartbeat beneath the chaos.
The Empire reorganized. Pulled units from the north to reinforce the southern flank. Siege towers still being repositioned, mages split between two fronts. The assault on the Ent walls came back at a lower intensity. Heroes still held back — handlers kept them close, waiting for the right moment, and the right moment hadn't come.
Chris stood on the northern wall as the battle reshaped itself around him. The centaurs moved like nothing else on the field — faster than the soldiers, more maneuverable than the mages, hitting and pulling back before the Empire could pin them down. They weren't winning. Weren't close. But every charge cost the Empire men and time, and in a war of attrition, men and time were the only currencies that mattered.
The northern Ent wall shuddered under another mage strike. Vibration rattled Chris's teeth. Bark cracked in a new place, thorn vines rippling with stress along the north face, and somewhere deep in the Rootmind the Ent groaned.
He pushed through exhaustion, through the copper taste, through the fog in his head. Sent the Rootmind a single command that every plant in the village could feel.
To hold. As long as they could.