The ideas of Dunne also strongly influenced the unfinished novels The Notion Club Papers by J. R. R. Tolkien and The Dark Tower by C. S. Lewis. Tolkien and Lewis were both members of the Inklings literary circle. Tolkien also used Dunne's ideas about parallel time dimensions in developing the relationship between time in Middle-earth and Lórien time. Lewis used the imagery of serialism in the afterlife he depicted at the end of The Last Battle, the closing tale in the Chronicles of Narnia.