The nave was originally a complete church with projecting antae and lintelled west door but most of its east wall was removed in order to form the chancel arch. This is a pointed arch of pink sandstone, plain except for a small figure carved on the lowermost springing stone of the north side facing into the nave. The figure is seated with his hands on his knees, and has a large round head with bulging eyes; the legs are crossed at the ankles and he wears a belted knee-length tunic. This figure has a tongue sticking out of its mouth and fits within the marginal carving style.