Hell for the damned. Typically flanking him is the Virgin Mary on his right and John the Apostle on his left, sometimes with the twenty-four elders mentioned in the Book of Revelation encircling the three of them. The angels blow trumpets to raise the dead for judgment. Commonly the Archangel Michael is in the centre, with the scales he will use to weigh the souls of humanity to see if individually they are fit for Heaven: one person is on one side of the scale while demonic creatures that represent the sins committed by the person are on the other side of the scale. The creatures try to tip the scales in their favour while, in some versions of the painting, the Virgin Mary places a rosary next to the person she wishes to protect, or puts her hand on the scale to counterbalance the demons. In some other versions, while one of the saved enters Heaven, a demon tries to pull them in with the damned, while an angel fights the demon for the soul. Those who are worthy are brought to the gates of Heaven, frequently represented by a castle with large walls built to keep out sinful impurities. This is most commonly depicted on the left hand side of Doom paintings. Groups of angels adorn the walls of Heaven celebrating the saved as they approach Heaven's gates, where Saint Peter waits with his keys. Those on the other side are deemed unworthy of Heaven, usually seized by demons and brought into the Hellmouth, beyond which, mostly out of sight, lie the bowels of hell. A decisive factor in the Doom or Last Judgement will be the question, if the corporal works of mercy were practiced or not during lifetime. They rate as important acts of charity. Therefore, and according to the biblical sources (Mt 5:31-46), the conjunction of the Last Judgement and the works of mercy is very frequent in the pictorial tradition of Christian art. At Chaldon in Surrey the west wall of the church has a painting of the Ladder of Salvation (a subject common in the Eastern Church but this is the only example in England). This painting dates from about 1200 and is 17.5 ft long and 11.21 ft high. It is in the church of Saints Peter and Paul, Chaldon (built before 1086 AD), and depicts images of the ways of salvation