Suddenly her self-control gave way.
"Du lieber Herr Jesus! I don't know—I don't know!" It was like a cry of anguish. "Miss Julia and Mr. Chester maybe—gewiss, one could understand. They hated everybody; they were hard, unloving. But little Ada—der süsse Engel! Why should they want to harm her!" She set her face grimly, and slowly her expression of stolidity returned.
"Why, indeed?" A note of sympathy was evident in Vance's voice. After a pause he rose and went to the window. "You may return to your room now, Frau Mannheim," he said, without turning. "We sha'n't let anything further happen to little Ada."
The woman got up heavily and, with an uneasy glance in Vance's direction, left the room.
As soon as she was out of hearing Markham swung about.
"What's the use of raking up all this ancient history?" he demanded irritably. "We're dealing with things that have taken place within the past few days; and you waste valuable time trying to find out why Tobias Greene hired a cook thirteen years ago."
"There's such a thing as cause and effect," offered Vance mildly. "And frequently there's a dashed long interval between the two."
"Granted. But what possible connection can this German cook have with the present murders?"
"Perhaps none." Vance strode back across the room, his eyes on the floor. "But, Markham old dear, nothing appears to have any connection with this débâcle. And, on the other hand, everything seems to have a possible relationship. The whole
