This question is incomplete; here´s the complete question.
Read "Object Lesson" by Ellery Queen.
How is the clock used to create suspense and pacing in
the story?
Answer:
The time frame to solve the crime is established by Mr. Ellery Queen as what remains of the first period, which ends at 9:35. Being 8:56, that means that there´re 39 minutes to solve the mystery. Throughout that time, everyone keeps looking at the clock and the author provides exact information on how much time remains, creating pacing and suspense. Finally, Mr. Ellery solves it exactly at 9:35.
Ellery keeps looking back at the clock as it gets closer to the end of the class period. He and Miss Carpenter are worried. This shows both pacing and suspense because the action happens quickly and the reader does not know when the crime will be solved.
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