Answer: Suspense
Suspense refers to the intense feeling that a reader gets when he is forced to wait for the outcome of an event in a narrative. It is characterized by wanting to know more and being excited about it. Suspense makes the reader ask "what is going to happen next?" It creates interest and anticipation. In this case, the reader wants to know why Mr. Hyde is away from home for such extended periods of time. The waiting for the information makes the reader more excited about the outcome.