//------------------------------//
// Sway 
// Story: Book 1 - The Behemoth came to Canterlot 
// by Equimorto 
//------------------------------//

Rainbow turned a corner after the other, debris left from previous battles kicked up by her passage as she streaked through the streets of the Empire. She couldn't go all out in an environment like that, and had to slow down even further than that to account for the possibility of running into enemy soldiers, but she still pushed those restrictions as far as she could. Her sword stayed at her side, almost pressed against her body as to not get in the way of her movements, as she raised piles of dust and rubble into curtains while speeding by.
She rounded one last corner and the broken central tower came into view. She slowed her pace a little, only a little, as she moved closer. The first thing she noticed was the battle going on atop what was left of the tower itself, Twilight showering Nightmare Moon with an onslaught of magical bullets and darts that seemed to be doing quite the amount of damage. She was not alone in it, as occasionally lighting fell from the otherwise clear sky, and just as Rainbow arrived Starshine materialised herself near the tower and began to take aim at Nightmare Moon with a series of crystal projectiles.
Rainbow headed at first towards the building on top of which Rarity and Fluttershy were waiting, and where she could see Applejack and Pinkie Pie had arrived as well. A number of other guards were there too, alongside Sunburst and another pony with a distinctly different armour. She didn't focus on that though. Her attention was caught by something else, something she saw in the corner of her eyes and she immediately turned to look at properly.
Celestia and Luna were on the ground, sitting in a pool of blood. Celestia had her eyes closed, and her legs wrapped around her sister as she held her close. Luna's body was limp, and all the blood there was hers. There was a hollow gash in her chest, where her heart and everything around it should have been. Her neck and wings were splayed out at wrong angles, and her mane and tail were dimming, losing their magical flow and darkening as they fell as regular hair into the blood below her.
Emotions came over Rainbow like a tidal wave. Despair turned to anger faster than she could drown in it, and she let it carry her. Her muscles worked on their own. She looked at Nightmare Moon being pushed up the spire and her eyes narrowed, as her wings beat down strongly in place. Her sword rose to her side, and something else came around it. A bow, bigger than her whole body, silver like all weapons Luna used. Her sword came to rest with its hilt against the string, blade pointed at Nightmare Moon.
Rainbow pulled it by will alone. Her muscles tensed, veins in her neck bulged, she grit her teeth as her breath grew laboured. She didn't have the mental presence to care. She saw nothing but the alicorn and the weapon between them. Nightmare Moon reared onto her hind legs after clashing with Twilight, her body exposed. Rainbow let go of the sword, and let it cut through the air shot towards its target.