He quickly sat up as he heard the metal scrape of a key going into the outside knob.
Eager to go, Phil followed Harry out through a door that opened on the street, but had no outside knob.
Then I got up on the sink and reached down to the outside knob of the door and groped around.
Both were clicks, The first, when some one drew back the outside knob of the door.
In order to be sure of later exit, The Shadow pulled the outside knob outward.
Wiped the outside knob just for good measure.
The Shadow's assumption, therefore, was that the tightness depended upon some construction of the outside knob alone.
The door was chained, the do-not-disturb sign hanging on the outside knob.
As I pulled the door slowly inward, a tiny object that had been poised on the outside knob fell to the floor with a clatter.
With my other hand, I turned the outside knob and pushed and the door came open.