At Tor.com she tagged five "books that explore the paradoxical relationship of time travel and portal narrative," including:
The Time Traveler’s Wife — Audrey NiffeneggerRead about the other entries on the list.
The Time Traveler’s Wife is an interesting play on the time travel as portal narrative theory. Niffenegger’s novel reveals much about what life is like for those close to portal narrative characters. The ones who aren’t taking the trip to another dimension. Claire, the titular character, stays in a single timeline, while her—well Henry’s a LOT of things—is deposited in different times by a genetic disorder.
The Time Traveler’s Wife is among Jenny Colgan's six best books.
--Marshal Zeringue