Researchers are assessing the riverbed in the deep Anchor Stone channel, down river from Dittisham.

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The palace, spotlit by the evening sun, is painted in earthy tones: deep pinks, stone greys, cinnamon browns.

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Deep underneath your feet is a hellish stone soup, kept hot by a torrent of radiation from poisonous isotopes of uranium, thorium and potassium in the earth's superheated mantle.

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