R. Austin Freeman, John Thorndyke's Cases — The Aluminium Dagger (1909)
“ Thorndyke remained silent for a while, pacing slowly along the gravel path, with his eyes bent on the ground: not abstractedly, however, but with a searching, attentive glance that roved amongst the shrubs and bushes, as though he were looking for something."What sort of man," he asked presently, "is this Leonard Wolfe? Obviously he is a low scoundrel, but what is he like in other respects? Is he a fool, for instance?""Not at all, I should say," said Mr. Curtis. "He was formerly an engineer, and, I believe, a very capable mechanician. ”
