Doc Secret Elevator

"We'll use Doc's scooter!" Renny barked.

They ran down the battery of elevators. The metal-paneled last door was shut. Apparently no cage stood there.

Renny's monster hand found a secret button and pushed it. The doors cracked open. A waiting cage was revealed.

This was Doc Savage's private lift, to be used in reaching the street in moments of emergency. Doc's friends called it his "scooter." It operated at a far greater speed than any other cage in the huge skyscraper. It always waited here on the eighty-sixth floor for Doc's use.

- The Land of Terror (1933) Chapter 12