In Czechoslovakian lore, a vampiric spirit known as a muroï (“fatal destiny”) is created when an evil person dies. To ensure that this type of vampire never has the chance to rise from its grave, remove the heart of the evil person before he is interred. If that precaution is not taken, when the muroï rises, it will have a red face and will prey upon the people of its former community each night. The muroï releases a cry that can freeze a person with fear, for whoever hears its call will be its next victim. By day the muroï’s spirit is at rest in its grave. To discover which grave exactly, lead a stallion through the graveyard, as it will refuse to walk over a grave that a vampire occupies. With the body exhumed, a nail must be driven through its heart and the skin between its thumb and forefinger must be cut with a pair of iron scissors.

Source: Cremene, Mythology of the Vampire in Romania; Reynolds, Magic, Divination, and Witchcraft, 15