Read the excerpt from The Dark Game.
As Montgomery and de Grey slowly made their way through the message, they noticed more and more oddities. For example, 97556 appeared near the end of the message; the 90000 family indicated important names that were not used very often in messages. We can imagine their shock when they realized that 97556 stood for Zimmermann. That single name fired the men with excitement as they began working on the message from the beginning.
Which word best describes the tone of the passage?
a. lighthearted
b. frustrated
c. suspenseful
d. frightened
