J. R. R. Tolkien, the modern don of ‘high fantasy’ was a master at creating a living, inhabitable landscape with just a sentence, or a world with a paragraph. Tolkien tells us where his thoughts wondered to after taking up the challenge of his fellow Inklings to write fantasy stories that defy space and time – for him that was the sinking of Atlantis (Numernor). He wrote his first story about time travel after being prompted by fellow Inklings to “do better” than David Lindsay did in his disturbing fantasy The Voyage to Arcturus. This “challenge” to write better novels about conquering space and time in a believable fashion, led to a commitment by numerous Inklings to try their hand at writing fantasy novels that make space and time travel believable.