Ick heartbeat

"Get gone, grasshopper!" I called, and even as we ran forward Molly vanished behind her best veil. It took us another quarter of a minute to cover the distance, and I went around the side of the house Thomas had taken. I pounded around the back corner to see that a large glass sliding door leading from a wooden deck into the house had been shattered. I could hear a big, thumping beat, as if from a subwoofer, pounding away inside the house.
I took the stairs up to the deck in a single jumping stride, and barely avoided a sudden explosion of glass, wood, drywall, and siding that came hurling toward me. I had an instant to realize that the projectile that had just come through the wall was my brother, and then something huge and black and swift came crashing through the same wall, expanding the hole to five times its original size.
The whatever-it-was stood within a step or two, and I was already sprinting. I kept doing it. I slapped one hand down and vaulted the railing on the far side of the deck. I barely jerked my hand from the rail before the thing smashed it to kindling with one huge, blindingly fast talon. That deep beat grew louder and faster as I landed, and I realized with a shock that I could hear the thing's rising heart rate as clearly as if it had been pounding on a drum.


Changes Chapter 25, Page 236