Hyginus FabulaeFab. 101, Telephus
     Telephus Herculis et Auges filius ab Achille in pugna Chironis hasta percussus dicitur. ex quo uulnere cum in dies taetro cruciatu angeretur, petit sortem ab Apolline, quod esset remedium; responsum est ei neminem mederi posse nisi eandem hastam qua uulneratus est. (2) hoc Telephus ut audiuit, ad regem Agamemnonem uenit et monitu Clytaemnestrae Orestem infantem de cunabulis rapuit, minitans se eum occisurum nisi sibi Achiui mederentur. (3) Achiuis autem quod responsum erat sine Telephi ductu Troiam capi non posse, facile cum eo in gratiam redierunt et ab Achille petierunt ut eum sanaret. quibus Achilles respondit se artem medicam non nosse. (4) tunc Vlixes ait, "Non te dicit Apollo sed auctorem uulneris hastam nominat." quam cum rasissent, remediatus est. (5) a quo cum peterent ut secum ad Troiam expugnandam iret, non impetrarunt, quod is Laodicen Priami filiam uxorem haberet; sed ob beneficium quod eum sanarunt, eos deduxit, locos autem et itinera demonstrauit; inde in Moesiam est profectus.

Hyginus FabulaeFab. on Telephus
     Telephus, the son of Hercules and Auge, is said to have been injured in combat by Achilles who wielded the spear of Chiron. And when Telephus was tormented with excruciating infection more and more every day, he sought out the oracle of Apollo to find the remedy. The response came that nobody could heal the wound except by using the same spear by which Telephus had been injured. When Telephus heard this, he went to Agamemnon and at the urging of Clytemnestra took the infant Orestes from his cradle, threatening to murder the child unless the Achaeans heal him. The Achaeans, though, because they received the response from the oracle that Troy could not be taken without the leadership of Telephus, they blithely resumed their friendship with him and asked Achilles to heal him. And in reply Achilles responded that he did not understand the healing art. They Ulysses said, "Apollo did not say you, but rather he named the spear as the wound's creator." When they came to realize this, Achilles could perform the healing. And when they asked him to come along to sack Troy, they did not achieve their wish, because Telephus had taken Priam's daughter Laodike as his wife. Instead, in exchange for their having healed him, Telephus guided them to the places and the routes; thereafter, he returned to Moesia.'
            — trans. RTM