“Certainly; it always is at night.”

“Couldn’t anybody open it from the inside, whether familiar with the house or not?” asked Ned.

“No; for the night-bolt is controlled by an electric button, which you have to push before it can be moved from the inside, so no one not familiar with the house could have opened it.”

Nestor glanced at the lieutenant with a question in his eyes, and the officer nodded. There was little doubt in the mind of either that the crime had been planned by some one thoroughly conversant with the premises. It was at least certain that exit had been made easy for the thieves.

“You spent this fifteen minutes, after the flight of the thieves by way of the front door, in your father’s room, I take it?” asked Ned.

“Yes; when the thieves ducked out of the front door I found a maid fainting in the corridor running along back of the parlor to Dad’s room, the place where he does his work while in the house. She flopped over when I spoke to her and pointed to Dad’s room. There I found him lying on the couch, drugged with chloroform.”

“They placed him on the couch, did they?”

“Oh, no, sir, the thieves didn’t take that trouble. Pedro was there before I entered the room, and it was he that did that. He had ’phoned for the doctor, too, before I got into the room.”

“He was chasing the thieves?” asked Ned.

“Why, yes. He was just ahead of me at the front door.”