My newest story; Heirs of Wolf's Moon: part 1

I could barely hear my footsteps in the snow from beside the half-frozen river. There was a great looking rabbit on the other side of the river. I stretched out my claws and hunched my muscles preparing to leap. If I could just.... “Hey, Hannah!” I turned and glared at my twin brother. “Go eat fur, Tim...” I growled, still feeling half wolf. I turned around again; the rabbit had hopped away, just as I suspected. I sighed, and looked down at my cold, bare feet. “Look, Toad-brain, you just scared away my prey.” Tim shot back my dirty look. “If you could just eat like a human you wouldn't have to hunt!” This made me furious. “If I ate like you, I wouldn't be a Fire-blood, now would I?!” I retorted. He sighed, giving up. “Look, brother wants you.” I snarled at my brother before dashing at wolf-speed away. Through the wind I managed to mutter; “What does that Silver-blood know anyway?” It seemed to take longer than usual to get to our cave. I'd lived there my whole life since my mother and father died the day my twin and I were born. “What do you want?” I stared into my older brother's blue eyes. He towered above me like one of the pines that surrounded our cave. “I know what you've been doing.” John kept the same dull look on his face as I parred my fangs. “Just because you're a Fire-blood, doesn't mean you're not a human like the rest of us.” Rage filled my belly, a slashed out a claw tearing across his face. “That's it!!” He slapped me across the face throwing me against the wall. “I-it goes for you as well...” I sputtered, sneering. “Y-you're just a f-filthy Sky-blood...” I scrambled to my feet, and dashed back into the snow. I had better things to do....

PS.
Fire-blood-can change into an animal depending on what sort of fire. (in this case wolf)
Silver-blood-I haven't made that up yet.....
Sky-blood-has extreme strength, and something I haven't made up yet...