He would not needlessly expose himself to-day to the risks of the poisoner." "Fifteen years ago he used poison ?" She nodded, with the air of one who knows.

"I am not speaking at random," she answered.

"I say what I know.

Some day I will explain.

For the present, it is enough to tell you I know it." "And what do you suspect now ?" I asked, the weird sense of her strange power deepening on me every second.
She held up the incriminated needle again.
"Do you see this groove ?" she asked, pointing to it with the tip of another.
I examined it once more at the light with the lens.