It may be, and often is, assumed that the appearance of grotesque or savage passages in a romance is an indication of high antiquity, and that these passages at least are faithful reproductions of Druidic originals, but this does not seem to be quite certain. Some of these passages, especially in the case of romances preserved in the Leabhar na h-Uidhri (The Book of the Dun Cow), look like insertions made by scribes of an antiquarian turn of mind,[FN#3] and are probably of very ancient date; in other cases, as for example in the "Boar of Mac Datho," where Conall dashes Anluan's head into Ket's face, the savagery is quite in 'keeping with the character of the story, and way have been deliberately invented by an author living in Christian times, to add a flavour to his tale, although in doing so he probably imitated a similar incident in some other legend. To take a classical parallel, the barbarity shown by Aeneas in Aeneid x. 518-520, in sacrificing four youths on the funeral pyre of Pallas, an act which would have been regarded with horror in Virgil's own day, does not prove that there was any ancient tale of the death of Pallas in which these victims were sacrificed, nor even that such victims were sacrificed in ancient Latium in Pallas' day; but it does show that Virgil was familiar with the fact that such victims used in some places to be sacrificed on funeral pyres; for, in a sense, he could not have actually invented the incident. [FN#3] See the exhibition of the tips of tongues in the "Sick-bed of Cuchulain," page 57. Thus the appearance of an archaic element in an Irish romance is in itself no proof of the Druidic origin of that form of the romance, nor even of the existence of that element in the romance's earliest form: upon such a principle the archaic character of the motif of the "Oedipus Coloneus" would prove it to be the oldest of the Greek tragedies, while as a matter of fact it seems to be doubtful whether the introduction of this motif into the story of Oedipus was not due to Sophocles himself, although of course he drew the idea of it, if not from the original legend of Oedipus, from some other early legend.