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The narrator wonders where the Time Traveller is. He could be in the past with the dinosaurs, or in the future, when the problems of class war are solved and real progress has been made. But the Time Traveller never believed in progress; he always expected disaster.
But, the narrator says, even if we know that progress is impossible and disaster is waiting for us, "we must live as though it were not so" (Epilogue.1).
The narrator keeps the two flowers that Weena gave the Time Traveller. The flowers remind him that when everything else has gone, "gratitude and a mutual tenderness still lived on in the heart of man" (Epilogue.1).