SIBYL

[Greek] In ancient times a prophetess who, in a state of ecstasy and under influence of Apollo, prophesized without being consulted. Famous Sibyls are the Cumaean Sibyl and the Erythraean Sibyl, who revealed to Alexander the Great his divine descent. The Cumaean Sibyl owned, according to tradition, nine books of prophecies, which she sold the remaining three to the Roman king Tarquin.