2. How does the Other propose to Piranesi they kill intruders to the House?
(a) With poison.
(b) With a gun.
(c) With a knife.
(d) With a rope.

3. What does Sorensen scream at Ketterley when he finds himself in the other world all of a sudden?
(a) Damn you!
(b) Put it back!
(c) You will not get away with this!
(d) Out!

4. What does 16 use to write her one-line message for Piranesi in Part IV?
(a) Shells.
(b) Chalk.
(c) Sand.
(d) Pebbles.

5. Who does Piranesi think might have written the words on the scraps of paper he puts together?
(a) The Other.
(b) 16.
(c) Laurence Arne-Sayles.
(d) One of the people who used to be the bones in the House.

6. What do Piranesi's journals say Matthew Rose Sorensen studied?
(a) Classics.
(b) Writing.
(c) Biology.
(d) Mathematics and transgressive thinking.

7. Who is one of Laurence Arne-Sayles's most devoted students?
(a) Fabian Gould.
(b) Marshall Windham.
(c) Charlotte Henry.
(d) Sylvia D'Agostino.

8. How does Piranesi begin to think of his relationship with Matthew Rose Sorensen at the end of Part IV?
(a) Matthew Rose Sorensen is like a brother to Piranesi.
(b) Matthew Rose Sorensen is like Piranesi's grandfather.
(c) It is as if Matthew Rose Sorensen is asleep within Piranesi.
(d) Matthew Rose Sorensen is like a treasured colleague of Piranesi's.

9. What adjective does Piranesi use to refer to James Ritter repeatedly?
(a) Wayward.
(b) Forgotten.
(c) Poor.
(d) Brilliant.

10. What music was playing in Ketterley's house during the ritual?
(a) Berlioz.
(b) Nine Inch Nails.
(c) Bruce Springsteen.
(d) Mozart.

11. How does Piranesi's journal describe D'Agostino's appearance?
(a) Entirely average.
(b) Slightly androgynous.
(c) Very masculine.
(d) Very feminine.

12. What scent surprises Piranesi in the First Vestibule in Part III?
(a) A fecal smell.
(b) The smell of fear.
(c) Perfume that smells of lemons and geranium.
(d) The smell of delicious cooking.

13. Who is the student that disappeared, an entry for which appears in Piranesi's journal?
(a) Michael Tarten.
(b) Penny Farady.
(c) Franklin Rosen.
(d) Maurizio Giussani.

14. What does Ketterley suggest he and Sorensen do just as Sorensen is preparing to leave his house?
(a) Eat together.
(b) Have sex.
(c) Drink alcohol together.
(d) Perform the ritual.

15. Why is the Other unconcerned about the event Piranesi predicts in Part IV?
(a) He will not be there in the House that day, so he will not be harmed.
(b) He does not think the lunar eclipse can harm him.
(c) He is used to fires.
(d) He tells Piranesi he is immune to all harm.