 But Apollonius in the Argonautica says that the Harpies were pursued to the Strophades Islands and suffered no harm, having sworn an oath that they would wrong Phineus no more.Eventually, the Argonauts freed Phineus from the punishment.Being rid of the Harpies, Phineus revealed to the Argonauts the course of their voyage, and advised them about the Clashing Rocks in the sea.