Before Markham could answer she switched herself out of the chair.

“Now, I’m going to pack. Enough is enough.”

When she had left the room, Heath looked with doubtful inquisitiveness at Markham.

“What about it, sir? Are you going to let her leave the city? She’s the only one of the Greenes who hasn’t been touched.”

We knew what he meant; and this spoken suggestion of the thought that had been passing through all our minds left us silent for a moment.

“We can’t take the chance of forcing her to stay here,” Markham returned finally. “If anything should happen . . .”

“I get you, sir.” Heath was on his feet. “But I’m going to see that she’s tailed—believe me! I’ll get two good men up here who’ll stick to her from the time she goes out that front door till we know where we stand.” He went into the hall, and we heard him giving orders to Snitkin over the telephone.

Five minutes later Doctor Doremus arrived. He was no longer jaunty, and his greeting was almost sombre. Accompanied by Drumm and Heath he went at once to Mrs. Greene’s room, while Markham and Vance and I waited down-stairs. When he returned at the end of fifteen minutes he was markedly subdued, and I noticed he did not put on his hat at its usual rakish angle.

“What’s the report?” Markham asked him.

“Same as Drumm’s. The old girl passed out, I’d say, between one and two.”