Who are the people in Blue Cove that Greta likes to visit? Why is she never afraid to visit them? Greta likes to visit Blue Cove during what kind of weather?

What does the fog represent to Greta? Why is Greta's father sympathetic to her venturing into the foggy woods?

Why does Mrs. Morrill immediately know who Greta is and what her name is? Who else in Greta's family may have been a fog-lover as a child?

What has happened to Mrs. Stanton's husband? How has she been wronged? Who does she plan to visit in Halifax in hopes that she will finally get some justice?

In what ways does Greta show that she understands the difference between her world and that of Blue Cove? In what ways does she try to convince herself that her friends in Blue Cove are real?

What incidents...