When Zeus commanded Hades to send Persephone back up to Demeter, Hades gave her a pomegranate seed to eat, so that she would have to return to the underworld. Askalaphos, the son of the river Acheron and the naiad nymph Gorgyra, bore witness against her, so Demeter pinned him down with a heavy rock in Hades' realm. Herakles, while in the underworld, rolled the stone off Askalaphos but Demeter turned him into an owl of the genus Bubo.
Martin Mecnarowski
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