Here are some "Question starters" that will help you come up with some really DEEP "under-the-surface questions.
What was ______________ thinking or feeling when....
Why did the author choose to add, open, end, reveal, conceal, etc.?
What would happen if _____________________
What will __________________ feel/think/do if they were to find out that________
How is ________________ like ______________ in the book? How are they different?
How might things have turned out differently if....?
What might happen if these event took place in a different time or place (be specific though)?
Why is the chapter called ___________? Is that an appropriate title? Why or why not?
What does the character or author mean when they said/wrote....?
What is the most interesting thing you know about the main character of your book?
Think about a setting in your book. If you were in the setting, what are some things you might see?
Describe an important event from your book and tell why it is important.
Who is your favorite character in your book? Why is this character your favorite?
What do you think happened just before your story started?
If you could give the main character in your book some advice, what would you tell him or her?
Is your book more funny or more serious? Why do you think so?
What point of view is your book written in? How do you know?
Do you like the main character of your book? Why or why not?
Think of an important event in your book. How would the story have changed if this event had not happened?
If you were in the story, what would your relationship be to the main character?
Think about your book. Then finish this sentence in 3 different ways: I wonder….
Thinks of a new title for you your book. Why do you think this is a good title?
Do you think this book was well written? Why or why not?
What is the main conflict that the main character in your book must face?
What are some important relationships in your book?
Think about a supporting character in your book. How would the book be different if that character did not exist?