But the most interesting feature of St. Mary's is the group of wall-paintings in the chapel of St. John, north of the nave. These are second in importance only to the famous painting at Chaldon, and have been admirably explained by Mr. J.G. Waller, writing in the _Surrey Archaeological Collections_. They belong to that curious age when paintings on church walls were used as texts and preached from on Sundays, to be scratched and whitewashed out of recognition in later years by destroyers and "restorers" alike. The subjects chosen by the painter in St. Mary's Church are peculiar and strangely grouped. The centre of the group is a "Majesty," the conventional representation of the second coming of Christ. The head of the Christ has its nimbus; that He is "in his glory" you can see by the mantle of royal purple, and "the holy angels with Him" are represented by two little cramped figures, set apart to make room for other drawings. Altogether there are six medallions besides the "Majesty," and there are also designs in the spandrils above the arch, but these are separate from the subjects of the medallions. The medallions, Mr. Waller explains, represent certain scenes in the lives of John the Baptist, and John the Evangelist, though only two of the stories depicted belong to the Bible. One of them, next to the "Majesty," shows the Evangelist seated in a caldron of boiling oil, in which he is being held by a hideous tormentor with a pitchfork, while a seated figure of Christ confers protection upon the Saint. In another medallion the Evangelist is seen raising to life the dead Drusiana, a lady of Ephesus who died just before the Apostle came to the city; he is also shown turning sticks and stones into gold and jewels, which he did in illustration of a sermon preached against riches. In a third medallion the Saint drinks harmlessly from a chalice of poison which has just killed two malefactors dead at his feet; and in a fourth the other John, the Baptist, is painted with a rope round his neck, dragged by an executioner before Herod. The executioner next beheads the saint, and evidently sees some terrible portent on doing so, for his hair stands on end, and his hand flies up in horror. The two other medallions are separate subjects. In one, a figure with a rope round his neck is dragged before Christ by demons; other demons, one red and one white, scream and hold out threatening claws; perhaps their question is "Art Thou come hitherto torment us before the time?" The other subject is obscure. A Jew, apparently, is being baptised; and a deed with seals is being examined by another figure, over a stream of water and blood. Mr. Waller thinks that the reference is to a legend of a Jew who desecrated an image of Christ with a spear, in imitation of the story of the crucifixion, when out of the wound there gushed a stream of blood and water. This miracle converted the Jew and his friends, who immediately made over their synagogue to the Christian Church.