strange glance pass between them; and obviously each of them had a touch of panic, the chauffeur more

markedly than McCann. The latter asked in a level, monotonous voice:

"Could it have been poison?"

"Yes, it could-" I stopped.

Poison! And that mysterious errand about which he had telephoned me! And the possibility of poison in

the other cases! But this death-and again I felt the doubt-had not been like those others.

"McCann," I said, "when and where did you first notice anything wrong?"

He answered, still in that monotonous voice:

"About six blocks down the street. The boss was sitting close to me. All at once he says 'Jesu!' Like he's

scared. He shoves his hands up to his chest. He gives a kind of groan an' stiffens out. I says to him: