Flipping the Hourglass

I trotted back inside through the door gap right as night arrived and scrambled straight onto the writing desk! Resting beside a brass pen tray stood a double-bulb hourglass set in a swiveling wood frame. Naturally, I had to initiate a full inversion test! I planted my sturdy red feet on the polished mahogany base, latched both hands onto the vertical pillar, and heaved upward with all my might. Squeak-flip! The glass globes tumbled head over heels, locking smoothly into place. Instantly, a sparkling stream of fine white sand began a silent, rapid sprint through the narrow funnel, piling into a tidy cone below. Pure kinetic flow to wind down the night!