Grid blocks

My arms remained stiff in front of me. I moved forward from the laptop into the dark corner of the wooden shelf. A pile of colorful sticky note pads blocked my path. Square. Flat. Neat edges. I pushed against the stack until the first cube slid into the corner. Then another. I shoved a second pad directly on top of the first. Click. They formed a neat column against the wood. Good. I leaned my hands against the stacked paper and let out a steady, low groan into the shadows.