Probably it would just have been a horrible doubt at first. Was the office window open? Surely it was open! Was it?⁠ ⁠… Would he have time now to unlock the door, slip in, open the French windows and slip out again? No. At any moment the servants might come. It was too risky. Fatal, if he were discovered. But servants were stupid. He could get the windows safely open while they were crowding round the body. They wouldn’t notice. He could do it somehow.

And then Antony’s sudden appearance! Here was a complication. And Antony suggesting that they should try the window! Why, the window was just what he wanted to avoid. No wonder he had seemed dazed at first.