Seeing Red(Warriors fanfiction)

(This ia a story I am starting to work on. Please tell me how it is in the comments and I will post more.)
Prologue
A brown she-cat dragged herself through the forest. Her pale green eyes shined faintly with pain and fear as she desperately tried to find somewhere to take shelter. It had been two weeks since her mate had died, and she was going to give birth. Panting so hard her flanks went in and out like bellows, she gasped for air, her eyes rolling back in her head. She couldn't go on like this. Slowly, she stopped dead as pain gripped her like a cruel twoleg's hand, yanking hard at her swollen belly. She yowled in pain briefly, then her vision faded to black. Once she awoke, she realized that she had passed out while giving birth-and her kits were good enough. There were three good ones-one ginger tabby that resembled her husband, a brown tabby that resembled her, and a brown tabby with ginger patches. But the final one, the fluffy, soot-gray tabby with darker gray specks, unnerved her, He was nothing like her mate, nothing like her. "He's unequal. He'll never fit in. I must get rid of him before his dirty..disease effects the others." The new mother hissed, picking up the sooty gray tom. He mewled pathetically, trembling from the harsh winds. "Shut up,we can't be heard." The she-cat whispered crossly, though, in her head, she knew perfectly well that her kit didn't understand as she placed her kit on the ground near what she didn't know was ShadowClan territory, then ran off as fast as her legs would carry her. But, before she left, she jammed a deathberry into her kit's tiny mouth.
She couldn't let it survive.