Describe Mary Russell. What are her strengths? Her weaknesses? What makes her a believable character? What makes her a likeable character? What is known about her from this story?

What is the relationship between Mary Russell and Sherlock Holmes? Compare the two characters? How are the similar? How are they different? What are the strengths and weaknesses of each? How do those strengths and weaknesses impact each other?

Who is Sabine Baring-Gould? Is he a fictional character? Why do you believe the author chose him as a character in the book? Is the method effective? What is known about Baring-Gould from this book?

Who is Richard Ketteridge? Who is David Scheiman? How do Russell and Holmes meet them? Where do they live? What is their role in the mystery? What things do they do that make them suspect in the eyes of Russell and...