King Eurystheus ordered Heracles to capture the Cretan Bull and bring it to him as part of his seventh labor. Prince Minos sought a sign from Poseidon to confirm his right to rule Crete.
Each of Eurystheus’s tasks had been designed to be insurmountable, yet Heracles had overcome them all. However, even the indomitable Heracles harbored doubts about the feasibility of this mission.