AFTER ANOTHER HOUR LUCY WALKED FROM HER SLEEP, FRESH AND BRIGHT AND SEEMINGLY NOT MUCH WHAT WORSE FOR HER TERRIBLE ORDEAL.

AN ORDEAL IS A
a. vision
b. test
c. mistake
d. nightmare

answer... d. nightmare

Right.

To determine the answer to this question, we need to understand the definition and context of the word "ordeal." Here's how you can find the answer on your own:

1. Read the sentence carefully: The sentence mentions "Lucy's terrible ordeal" that she experienced before waking up.
2. Consider the meaning of the word "ordeal": An ordeal is typically a difficult, challenging, or traumatic experience.
3. Analyze the options: Evaluate the provided options – vision, test, mistake, and nightmare – and determine which one aligns with the definition and context of "ordeal."

In this case, since "ordeal" usually refers to a challenging or traumatic experience, the most suitable option is "d. nightmare." A nightmare is a type of disturbing dream that can be perceived as an ordeal.

Therefore, the answer is d. nightmare.