Which of the following is an example of foreshadowing in which Saki subtly suggests that his character may be hearing wolves in the distance?

"The roebuck . . . were running like driven things to-night, and there was movement and unrest among the creatures that were wont to sleep through the dark hours. Assuredly there was a disturbing element in the forest, and Ulrich could guess . . . from whence it came." (149)