She hesitantly hops on it's back.

As soon as she was settled, the unicorn made a fantastic leap over the rocks and landed at the edge of the icy field. For a moment, it hesitated, looking this way and that, trying to find an easier way in. A red-eyed hound sprang at them with a snarl, tongue lolling. The unicorn leaped nimbly aside, lashing out with its hooves.
There was a crack and a yelp, and the hound fled into the mist on three legs.

"Nicely done." She says, watching it go.

A bellow sounded behind them. The wyvern dove from the slope and glide toward the ground, straight for Claire. Rowan was still on the wyverns back, sword drawn, his furious gaze fixed on Claire. With a desperate whinny, they plunged into the heart of the battle. The unicorn bounded through the chaos, dodging weapons, leaping over obstacles, moving with terrifying speed. Around them, Summer and Winter fey tore and slashed at each other, screaming in fury, pain and pure, joyful bloodlust. A pair of trolls pounded stone clubs into a swarm of goblins, their shoulders and backs bristling with spears. A trio of redcaps dragged a wailing sylph from the air, ignoring the razor edge of her dragonfly wings, and buried her under their stabbing knives. Seelie knights in green and gold armor clashed swords with Unseelie warriors, their movements so graceful it looked like they were dancing, but their unearthly beauty was twisted with hate. The roar of the wyvern sounded directly above them, and the unicorn leaped aside. The wyverns hooked, grasping talons slammed into a dwarf, and the bearded man screamed as he was torn away and lifted into the air, struggling weakly. The wyvern soared upward, and it dropped the still struggling dwarf to the rocks below. Wheeling in a lazy circle, it came for Claire again. Her mount started weaving, a frantic, zigzag pattern. The wyvern wavered in the air, confused, then dove with another chilling wail. Her nimble steed dodged once more, but this time the wyvern passed so close Claire couldve slapped its claws with the back of her hand.

She held on tight, continuing to watch for the wyvern behind her as they continue through the chaos.

They were in the middle of the field, still nowhere near the river, when the unicorn went down.

The fighting was thicker in the center of the battleground, where soldiers from both sides clashed together over the dead and the dying. The unicorn darted between the crowds, seeming to know exactly when a hole would open up, slipping through without slowing down. But Rowan was still on their tail. As the unicorn dodged the wyverns pass for the third time, a huge, rocklike monster reared up from beneath the snow, swiping at them with a massive club. It clipped the unicorns front legs, and the graceful animal collapsed with a shrill whinny.

She rolls away, jumping up quickly as she stares at the fallen unicorn. "Will you be alright if I keep going?" She asks, her eyes o Rowan.

Then the white shape of the unicorn reared up, pawing the air, slashing with its horn, before it was pulled under the black mass. Once more, the unicorn reared up, its white coat streaked with crimson, several dark things clinging to its back. With a shrill cry, the unicorn disappeared into the churning mass once more. This time, it didnt resurface.

She sighed, sprinting away with the scepter.