spirits from entering the body, and this may have influenced later vampire folklore. This tradition persisted in modern Greek folklore about the vrykolakas, in which a wax cross and piece of pottery with the inscription "Jesus Christ conquers" were placed on the corpse to prevent the body from becoming a vampire. Other methods commonly practised in Europe included severing the tendons at the knees or placing poppy seeds, millet, or sand on the ground at the grave site of a presumed vampire; this was intended to keep the vampire occupied all night by counting the fallen grains, indicating an association of vampires with arithmomania. Similar Chinese narratives state that if a vampiric being came across a sack of rice, it would have to count every grain; this is a theme encountered in myths from the Indian subcontinent, as well as in South American tales of witches and other sorts of evil or mischievous spirits or beings. Identifying vampires Many rituals were used to identify a vampire. One method of finding a vampire's grave involved leading a virgin boy through a graveyard or church grounds on a virgin stallion—the horse would supposedly balk at the grave in question. Generally a black horse was required, though in Albania it should be white. Holes appearing in the earth over a grave were taken as a sign of vampirism. Corpses thought to be vampires were generally described as having a healthier appearance than expected, plump and showing little or no signs of decomposition. In some cases, when suspected graves were opened, villagers even described the corpse as having fresh blood from a victim all over its face. Evidence that a vampire was active in a given locality included death of cattle, sheep, relatives or neighbours. Folkloric vampires could also make their presence felt by engaging in minor poltergeist-styled activity, such as hurling stones on roofs or moving household objects, and pressing on people in their sleep. Protection Apotropaics—items able to ward off revenants—are common in vampire folklore. Garlic is a common example, a branch of wild rose and hawthorn are sometimes associated with causing harm to vampires, and in Europe, sprinkling mustard seeds on the roof of a house was used to keep them away. Other apotropaics include sacred items, such as crucifix, rosary, or holy water. Some folklore also states that vampires are unable to walk on consecrated ground, such as that of