Rapidly they assembled the things needed and drove to the lab.
With Tip, ready, eager, and quick to help, Roger got the film into the tank waiting on their arrival, and set the screening room turntable for the playback. In no time after their arrival they listened to the revealing details—and were again baffled.
The record, after running along for a few seconds, suddenly spoke that weird warning, “The Voice of Doom!”
As before, it was repeated and was followed by the uncanny and shrill screech that ran down the scale to a groan that died in a sudden sharp grinding stop.
“Let it run!” begged Roger as Grover was about to stop the motor, “maybe he gave us a clue after that waked him up.”
There was a scraping of the recording needle running without vibration over the disk for a few seconds, and then they heard, very faintly recorded:
“You—Clark!——”
“Who’s Clark, Cousin Gro——”
“Sh-h-h!”
The recording was again audible: