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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters Ten and Eleven.

Multiple Choice Questions

1. About what do Petra and Calder worry?
(a) If Ms. Hussey is badly injured.
(b) All the problems that seem to be arising at the same time.
(c) If Calder's grandmother is too old to help them with their investigation.
(d) If Petra's father is leaving again on a business trip.

2. In what does Calder feel trapped?
(a) A dangerous situation.
(b) A no-win situation.
(c) A puzzle.
(d) Having to spend time with Petra.

3. About what is Petra curious?
(a) Her mother's interpretation of the woman being in Petra's dream.
(b) The woman's significance.
(c) How Petra and Calder both had the same dream.
(d) Why Ms. Hussey seems to know about Petra's dream.

4. How do Calder and Petra decide to help the Lady?
(a) By paying attention to everything around them.
(b) By learning more about who the lady is.
(c) By talking to Ms. Hussey.
(d) By hiring a private investigator.

5. What does Petra ask Calder to explain?
(a) About his mathematical genius.
(b) About his grandmother and her knowledge of the painting.
(c) About pentominoes.
(d) About his box.

Short Answer Questions

1. Where does Calder work?

2. What does the thief say he will do if the public does not respond to the thief's demands?

3. From where do the clippings in "Lo!" seem to come?

4. Who is "Old Fred"?

5. What type of events is explained in the book Petra is reading?

(see the answer key)

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