Clap

He opened his eyes but it was completely dark. He was surprised to find himself lying on a cold, hard floor. He sat up and heard...
Clap-clap.
This wasn't right. He was in the magician's cabinet. He was the volunteer from the audience. Not that he had volunteered, but when the magician guy had looked at him, he'd found it hard to refuse.
Anyway, this wasn't the inside of the "disappearing cabinet" that he had stepped into. Maybe there was a trap door and he was in some sort of cellar.
He sat up...
Clap-clap.
What was that noise?
He stood up.
Clap-clap.
It was as if he were being applauded for getting to his feet!
Clap-clap.
But he hadn't done anything this time! Unless he was being applauded for working out that he was being clapped...
Clap-clap-clap-clap.
He felt numb. He thought of shouting to the magician and the audience that he was here, just below the stage, that he hadn't disappeared at all.
But he was scared of getting no reaction.
Who are you? He thought...
Are you the magician?
(The sound of no hands clapping)
You're not the magician are you?
Clap-clap.
There was no trap door, was there?
Clap-clap.
And, somehow, he knew...
Clap-clap-clap-clap.