sentences:  An article in the Pre-Raphaelite Society journal, "The Review", has hypothesised that Waterhouse may have painted an image of his own face into "The Magic Circle" and that the image is only viewable at a specific required distance from the painting.The article also suggests that it may have been possible to achieve that distance by viewing the painting through reversed binoculars or opera glasses.An accompanying documentary, "Inside the mystery of JW Waterhouse's The Magic Circle", presents the visual argument.