Interjunction
This is due to it being a statement
The narrator call Mademoiselle Lalande a "queenly apparition" when he first sees her because he felt that the lady is a magic in a form of a woman. I hope my answer has come to your help. God bless and have a nice day ahead! Feel free to ask more questions.
Salutations! Both share wisdom/teach a lesson. Please tell me how you did.