made some passing reference to the outcome that when he came to
send in a bill to Brixton for his services he would not forget the
high eyebrowed Count.

I followed in silence as Craig climbed into the Brixton car and
explained to the banker that it was imperative that he should get
back to the city immediately. Nothing would do but that the car
must take us all the way back, while Brixton summoned another from
the house for himself.

The ride was accomplished swiftly in record time. Kennedy said
little. Apparently the exhilaration of the on-rush of cool air was
quite in keeping with his mood, though for my part, I should have
preferred something a little more relaxing of the nervous tension.

"We've been at it five days, now," I remarked wearily as I dropped
into an easy chair in our own quarters. "Are you going to keep up
this debauch?"

Kennedy laughed.

"No," he said with a twinkle of scientific mischief, "no, I'm
going to sleep it off."

"Thank heaven!" I muttered.

"Because," he went on seriously, "that case interrupted a long
series of tests I am making on the sensitiveness of selenium to
light, and I want to finish them up soon. There's no telling when
I shall be called on to use the information."