Agathias (l. i. c. 21) settles the Sibyl's cave under the wall of Cumae: he agrees with Servius, (ad. l. vi. Aeneid.;) nor can I perceive why their opinion should be rejected by Heyne, the excellent editor of Virgil (tom. ii. p. 650, 651.). In urbe media secreta religio! But Cumae was not yet built; and the lines (l. vi. 96, 97) would become ridiculous, if Aeneas were actually in a Greek city.