Answer:
The word missing in the blank is ''semblance''.
This text is an extract from the Scarlett Letter's introduction: ''The Custom House''.
Step-by-step explanation:
In this paragraph, Nathaniel Hawthrone laments his recent, misdirected efforts in public office. This is because while he was serving as Surveyor of Salem Customs he was also trying to worked up the story of the book's protagonist. And this combination of factors led to what the author called his ''mistake'' during the writing process.
Therefore that he used the key word ''semblance'' to make others understand that things did not go as he hoped to.