What is the mood that Dickens creates by the details he gives in describing the room where Mr. Lorry meets Miss Manette? (Book 1 Chapters 1-6)

Here is a quote from the text:

The obscurity was so difficult to penetrate that Mr. Lorry, picking his way over the well-worn Turkey carpet, supposed Miss Manette to be, for the moment, in some adjacent room, until, having got past the two tall candles, he saw standing to receive him by the table between them and the fire, a young lady of not more than seventeen, in a riding-cloak, and still holding her straw travelling-hat by its ribbon in her hand.