ten
o'clock
He read a while , and for a while then he took notes . Pocketing his notes , he ate dinner alone and in due season thereafter he went home and to bed . But before this , he sent off a night lettergram to the Byrnes private detective agency down in Park Row . He wanted -- so in effect the message ran -- the best man in the employ of that concern to call upon him at his bachelor apartments in the Hotel Sedgwick , in the morning at ten o'clock . The matter was urgent , important -- and confidential . If the man who knocked at Green 's sitting-room door that next morning at ten was not the best man of the Byrnes staff he looked the part . He was square-jawed , with an appraising eye and a good pair of shoulders .