CHAPTER XXIV.
Almost instantaneously Madame Fontaine recovered her self-control.
"I really couldn't help feeling startled," she said, explaining herself to Fritz and to me.

"The last time I saw this man, he was employed in a menial capacity at the University of Wurzburg.

He left us one day, nobody knew why.

And he suddenly appears again, without a word of warning, in this house." I looked at Jack.

A smile of mischievous satisfaction was on his face.