Suspense

From the text:

Turn, smell, listen, feel and then a sound, a small sound, and he looked up and away from the lake and saw the wolf. It was halfway up the hill from the lake, standing with its head and shoulders sticking out into a small opening, looking down on him with wide yellow eyes. He had never seen a wolf and the size threw him—not as big as a bear but somehow seeming that large. The wolf claimed all that was below him as his own, took Brian as his own.