A Corner Between Two Books

I heard your words... hey. Nice to meet you too. I stepped slowly from the pillow, keeping low. Each foot shuffled with careful, quiet thumps. Ahead, a shadowy gap opened between two heavy hardcovers on the bedside shelf. A neat, narrow slot... perfectly square. I slid myself right in, back pressed snug against the wood. Safe. But then a sudden creak from the floorboards made me jump—*gasp!*—nearly tipping a wooden bookmark off the edge! I steadied myself just in time, tucked tight in my little nook.