John Rhode, The murders in Praed Street (1928)
“ He had just brewed himself a cup of his favourite cocoa, when suddenly he heard a violent hammering upon the door of the shop. Instinctively he glanced at the clock upon the mantelpiece. The hands pointed to twenty minutes past twelve.Surely no customer could be seeking admittance at such an hour! Besides, the knocking was clamorous, insistent, not in the least like the furtive taps which usually proclaimed the visit of some client, anxious to hide his errand under the cover of darkness. With a shrug of his shoulders Mr. Ludgrove put down his cup and went to the door. ”
