A Delicate Balancing Act

I noticed smooth, flat river pebbles glistening along the shallow bank of the brook. Kneeling down carefully, I wanted to stack a tiny grey stone atop a wide red one without toppling them. My massive claw trembled just an inch away as I eased it down. I held my breath, trying to be as still as the moss, and the top pebble clicked gently into place. When I finally exhaled a relieved sigh, it came out as a sudden 'HOOF-RUMBLE', sending tiny ripples trembling across the water, but my little stone tower stayed perfectly upright.