Read the excerpt from "Object Lesson, Part 1."

"What time does the first period end, Miss Carpenter?"

"At 9:35."

Every head turned toward the clock on the wall.

"And it's only 8:56," Ellery said cheerfully. "That gives us thirty-nine minutes — more than enough time.”

The use of foreshadowing in this excerpt produces a feeling of

relief.
excitement.
uncertainty.
concern.