"That is not the—"
"Just a moment, Mr. Margot," interrupted Kennedy. "I think Mr. Wade will be able to show that it is the Invincible when he matches up the parts that have been hurriedly cut from—from the wonderful Arkansas diamond," Craig added sarcastically. "Miss Hoffman, Dr. Preston tells us that before you were a diamond saleswoman you had been a trained nurse!"
The look Elsa Hoffman flashed, as her calm exterior refused to conceal her emotions longer, was venomous.
Kennedy was the calmest one of us all as he tapped the little galvanometer significantly with his index finger.
"De Guerre," he exclaimed, leaning forward slightly, "you and your lover, Elsa Hoffman, planned cunningly to rob your own brothers. But, instead of robbers merely," he ground out, "you are murderers!"
CHAPTER X
THE SIXTH SENSE
"I suppose you have read in the papers of the mysterious burning of our country house at Oceanhurst, on the south shore of Long Island?"
It had been about the middle of the afternoon that a huge automobile of the latest design drew up at Kennedy's laboratory and a stylishly dressed woman, accompanied by a very attentive young man, alighted.