That's the house phone." Anderson looked the apparatus over.
"No connection with the outside, eh ?" "No," said Dale absent-mindedly.

"Just from room to room in the house." He accepted her explanation and answered the other telephone.
"Hello--hello--what the--" He moved the receiver hook up and down, without result, and gave it up.

"This line sounds dead," he said.
"It was all right a few minutes ago," said Dale without thinking.
"You were using it a few minutes ago ?" She hesitated--what use to deny what she had already admitted, for all practical purposes.
"Yes." The city telephone rang again.

The detective pounced upon it.
"Hello--yes--yes--this is Anderson--go ahead." He paused, while the tiny voice in the receiver buzzed for some seconds.

Then he interrupted it impatiently.
"You're sure of that, are you?
I see.