One served witness, two sentences, and a pedigree. Geryon of Erythia — himself "the body of three men grown together" — keeps red kine, with Eurytion for herdsman and Orthus for watch-dog: "the two-headed hound, begotten by Typhon on Echidna" [The Library (Bibliotheca), BOOK II, ch. V]. The dog's biography is duty and death: "the dog, perceiving him, rushed at him", and Hercules "smote it with his club" [ibid.]. The sire is served a book earlier — from Typhon's shoulders "projected a hundred dragons’ heads" [The Library (Bibliotheca), BOOK I, ch. VI] — two heads read as a modest inheritance. Frazer's note keeps the name honest: "The watchdog’s name is variously given as Orthus (Orthos) and Orthrus (Orthros)" [The Library (Bibliotheca), BOOK II, ch. V, editor's note]. The candidate lane offered head-counts of the wrong kind: one army facing the Fianna "was Dog-headed" [Gods and Fighting Men: The Story of the Tuatha de Danaan and of the Fianna of Ireland, Ch. 51], and Hesiod's catalogue knows "the proud Half-Dog men" [Hesiod, the Homeric Hymns, and Homerica, THE CATALOGUES OF WOMEN AND EOIAE] — dog-headed men both, not two-headed dogs; the keyword lane cannot count heads. The honest form: Orthus stands alone on our shelf, two sentences of guard-duty, guarding cattle his triple master loses anyway.