1. Why are the different versions of the Doctor able to appear together in contradiction to the laws of time? Why don't disastrous consequences ensue?

2. Why doesn't Rassilon punish the Master? How does Borusa's punishment fit his crime?

3. Is Rassilon really dead? Why does the Doctor seem uncertain at the end of the novel when he says, "He was—he is—the greatest Time Lord of all"?

4. Which of the companions is the most helpful to the Doctors? How?

Which of the companions creates the most difficulties for the Doctors? How?

5. Terrance Dicks was faced with a difficult task when he wrote Doctor Who: The Five Doctors. He needed to include as many of his audience's favorite characters as possible while creating an enjoyable and easy-to-follow story. How well has he succeeded? What would you change to make the book better?

6. Why would...