Final answer:
The suspense in the passage is created by the uncertainty of the situation, rapid action, and the presence of danger, all of which compel the reader to anticipate what happens next.
Step-by-step explanation:
The passage builds suspense by using the uncertainty of waiting for Hank to arrive, the sudden action of grabbing and shoving items into his hand, Hank's immediate understanding and disappearance, and the high-stakes atmosphere created by a man with a gun. The unknown nature of the 'wrong' situation and the use of concise, rapid sentence structures contribute to a tense environment where the reader eagerly anticipates what will happen next. Additionally, the character's breath catching in their chest conveys a sense of imminent danger or important developments, which enhances the suspenseful mood.