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Amidst the wreckage of these implausible suggestions, an alternative has recently emerged—that Lewis was shaped by what the great English seventeenth-century poet John Donne called “the Heptarchy, the seven kingdoms of the seven planets.” And amazingly, this one seems to work. The idea was first put forward by Oxford Lewis scholar Michael Ward in 2008.[618] Noting the importance that Lewis assigns to the seven planets in his studies of medieval literature, Ward suggests that the Narnia novels reflect and embody the thematic characteristics associated in the “discarded” medieval worldview with the seven planets. In the pre-Copernican worldview, which dominated the Middle Ages, Earth was understood to be stationary; the seven “planets” revolved around Earth. These medieval planets were the Sun, the Moon, Mercury, Venus, Mars, Jupiter, and Saturn. Lewis does not include Uranus, Neptune, and Pluto, since these were only discovered in the eighteenth, nineteenth, and twentieth centuries, respectively. So what is Lewis doing? Ward is not suggesting that Lewis reverts to a pre-Copernican cosmology, nor that he endorses the arcane world of astrology. His point is much more subtle, and has enormous imaginative potential. For Ward, Lewis regarded the seven planets as being part of a poetically rich and imaginatively satisfying symbolic system. Lewis therefore took the imaginative and emotive characteristics which the Middle Ages associated with each of the seven planets, and attached these to each of the seven novels as follows: The Lion, the Witch and the Wardrobe: Jupiter Prince Caspian: Mars The Voyage of the “Dawn Treader”: the Sun The Silver Chair: the Moon The Horse and His Boy: Mercury The Magician’s Nephew: Venus The Last Battle: Saturn For example, Ward argues that Prince Caspian shows the thematic influence of Mars.[619] This is seen primarily at two levels. First, Mars was the ancient god of war (Mars Gradivus). This immediately connects to the dominance of military language, imagery, and issues in this novel. The four Pevensie children arrive in Narnia “in the middle of a war”—“the Great War of Deliverance,” as it is referred to later in the series, or the “Civil War” in Lewis’s own “Outline of Narnian History.
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Alister E. McGrath (C. S. Lewis: A Life: Eccentric Genius, Reluctant Prophet)