In the fullest account in the "Bibliotheke" of Pseudo-Apollodorus, Heracles was required to travel to Erytheia, in order to obtain the Cattle of Geryon (Γηρυόνου βόες) as his tenth labour. On the way there, he crossed the Libyan desert and became so frustrated at the heat that he shot an arrow at Helios, the Sun. Helios "in admiration of his courage" gave Heracles the golden cup he used to sail across the sea from west to east each night. Heracles used it to reach Erytheia, a favorite motif of the vase-painters. Such a magical conveyance undercuts any literal geography for Erytheia, the "red island" of the sunset.