(Saturday, June 15; 2 p.m.)
We sat for a while smoking in silence, Vance gazing lazily out into Madison Square, Markham frowning deeply at the faded oil portrait of old Peter Stuyvesant that hung over the fireplace.
Presently Vance turned and contemplated the District Attorney with a faintly sardonic smile.
"I say, Markham," he drawled; "it has always been a source of amazement to me how easily you investigators of crime are misled by what you call clues. You find a footprint, or a parked automobile, or a monogrammed handkerchief, and then dash off on a wild chase with your eternal Ecce signum! 'Pon my word, it's as if you chaps were all under the spell of shillin' shockers. Won't you ever learn that crimes can't be solved by deductions based merely on material clues and circumst'ntial evidence?"
I think Markham was as much surprised as I at this sudden criticism; yet we both knew Vance well enough to realize that, despite his placid and almost flippant tone, there was a serious purpose behind his words.
"Would you advocate ignoring all the tangible
