This was a new feature of the case, for Nestor had not considered Mr. Cameron's absence from the room as among the possibilities.

"Was he out of the building?" he asked.

Big Bob shook his head.

"And while he was away you three entered with the false key?"

Another nod. Fremont motioned for him to go on, but Nestor laid a hand on his shoulder.

"Let me see if I can't help you," he said. "I think I can state the case now. You were waiting about the building to secure the Tolford papers, and Scoby and Felix were with you. After the departure of Don Miguel you caused a telephone call to be sent to Mr. Cameron—a call taking him to another part of the building. Is that right?"

The injured man smiled faintly and nodded.

"There were no telephone calls there that night!" howled the night watchman. "He is lying to you!"

"Mr. Cameron left the room, locking it after him," Nestor went on, "and you three entered and began looking for the Tolford papers? Is that right?"

Another nod from the big fellow on the floor.