They'll think it's a mistake, that's all.

What's the matter in the dark?
You do as I tell you.

And when you've got to know the address--you can take your time about that, of course--come back along Shaftesbury Avenue and give three knocks at the door, and I'll come down." It flashed through Christopher's mind that he would be terribly late in getting home, but there was no help for it.

If he refused this undertaking, or failed to carry it out successfully, Polly would cast him off.

The gloom of a desperate mood fell upon him.