... > klassinen mytologia ja antiikin historia > Kreikan sankaritarut (I) > Herkules (Herakles) (Herkuleksen taru) > Herkuleksen keskeiset uroteot: kaksitoista urotekoa > preliminaries to the Twelve Labours of Hercules > Hercules consults the Delphic oracle and is bidden to go and serve King Eurystheus of Tiryns > Hercules and Iolaus, his charioteer and shield-bearer, before Eurystheus