show of interest, and stood aside respectfully for us to enter.
"We wish to see Miss Sibella," said Vance. "Please tell her to come to the drawing-room—alone."
"I'm sorry, sir, but Miss Sibella is out."
"Then tell Miss Ada we want to see her."
"Miss Ada is out also, sir." The butler's unemotional tone sounded strangely incongruous in the tense atmosphere we had brought with us.
"When do you expect them back?"
"I couldn't say, sir. They went out motoring together. They probably won't be gone long. Would you gentlemen care to wait?"
Vance hesitated.
"Yes, we'll wait," he decided, and walked toward the drawing-room.
But he had barely reached the archway when he turned suddenly and called to Sproot, who was retreating slowly toward the rear of the hall.
"You say Miss Sibella and Miss Ada went motoring together? How long ago?"
"About fifteen minutes—maybe twenty, sir." A barely perceptible lift of the man's eyebrows indicated that he was greatly astonished by Vance's sudden change of manner.
"Whose car did they go in?"
"In Doctor Von Blon's. He was here to tea"
"And who suggested the ride, Sproot?"
"I really couldn't say, sir. They were sort of debating about it when I came in to clear away the tea things."
"Repeat everything you heard!" Vance spoke rapidly and with more than a trace of excitement.
