The full quote is, "Under none of the accredited ghostly circumstances... did I first make acquaintance with the house which is the subject of this Christmas piece." This is called "inversion", and it happens because of the first part: "Under none of the accredited ghostly circumstances". Basically, the adverbial phrase has shifted to the front for emphasis, and the rest of the sentence changes accordingly.

Thanks a lot Gokhan, I understand that ıt seems like emphasis of 'do' for example I do see it ?

Hi Seyda, It is to emphasize what you do or did. That kind of sentences are quite used to highlight the action that you take. Regards Gokhan