To Say Nothing of the Dog (1997)

Time-travelling historians try to repair a possible disruption to history while also managing a restoration project's unreasonable demands. Victorian manners, romantic misunderstandings and the rules of time travel keep interfering with one another. Willis makes the plotting intricate enough that small details reward attention. A long, leisurely comedy of errors with literary allusions and a mystery underneath it. This Oxford time-travel novel can be read on its own.