not a how can we see it or be it or have it ; no , it was the doing : almost like a violation , an offense , an act of violence -- but such was lacking in their vocabulary ; that it why it was so terrible : the knocking on the knobless , keyless , boulder-solid door -- but not to knock , for they knew what the knock was : gentleness , a gentle lifting of an eyelid ... . `` just one look ! ''