A Ringing Metal Slot

I glided away from the entrance mat, following the soft murmur of the lobby. Tucked into the recessed mail alcove, a low bank of brushed silver parcel lockers caught my eye. Right along the lowest ledge, a thin metal mail key on a green plastic tag lay forgotten. I inched forward across the cool tile, nudging my rounded snout against the key's notched teeth. With a gentle shove, it skittered across the metal shelf, clinking against the locker door. The sharp, bright ring resonated right through the steel plate, buzzing warmly against my flipper like a tiny musical wave.