A worn grave covering stone with cross within a circle incised on one face. The slab measures 76 centimetres x 40.5 centimetres x 10 centimetres and is now kept at St Trinians Church. St Trinian's Church itself is a roofless ruin - known in Manx as 'Keeill Brisht' (broken church) - standing at the foot of Greeba Mountain in Marown parish. A keeill is thought to have existed on the site from around the 4th century, with the cross near the altar dated to the 7th century; the surviving ruin, dedicated to St Ninian, is documented as a ruin by the 14th century and belonged to the Priory of Whithorn before the parish church relocated to nearby Old St Runius. Manx National Heritage became guardian of the monument in 1908, and the first service held there in centuries took place on 4 September 1911. The church is also the subject of a well-known Manx folk legend in which a supernatural 'Buggane' repeatedly tore off the roof, said to explain why the building was never successfully re-roofed.