Point of View

1. What point of view does the story use? Is the story told from a first-person perspective, in which the narrator is one of the character in the story, and refers to himself or herself as "I"? Or is the story told from a third-person perspective, in which the narrator is not one of the characters in the story or may not participate in the events of the story?

From third person thought.

2.What are the advantages of the chosen point of view? Does it furnish any clues as to the purpose of the story?
Third person have his own opinion of the story. How he thought and opinion help story run and go forward. 

3. Is the narrator reliable or unreliable? Does he/she have a limited knowledge or understanding of characters and events in the story? Does the narrator know almost everything about one character or every character, including inner thoughts?

reliable, He understanding character in the story. He knew but he did not explain. He only explain his inner thought deep in each main character which is Gillian.

4. Does the author use point of view primarily to reveal or conceal? Does he ever unfairly withhold important information known to the focal character?

Yes, he use his own point of view to conceal the story. He told each information deeply through the main character.