Narrating an Act of Time Travel

How does one narrate an act of time travel? And who is one’s audience? In Wells’s The Time Machine, narration unfolds by way of a story within a story. There’s the narrator, a cautious-but-ultimately-optimistic attendee at a series of dinner parties, who speaks only in the book’s intro and conclusion; and then there’s the host of these parties, the Time Traveler. The core of the novel consists of the account given by this latter figure upon his return from the future.