He undressed with excessive caution, and fell asleep congratulating himself that nobody knew of his escapade.

He was not aware that the gently-snoring Sid was awake, and had been so for an hour.
When Tom awoke, Sid was dressed and gone.

There was a late look in the light, a late sense in the atmosphere.

He was startled.

Why had he not been called--persecuted till he was up, as usual?
The thought filled him with bodings.