Athena vs. Pallas-- Version A Picture

Mythology gives us several different stories explaining why Athena has the epithet Pallas. From Athena: Grey-Eyed Goddess, here's a page from the first version-- Athena accidentally kills her best friend Pallas in a spear duel.
Pallas Athena
Three Greek Goddesses
Athena vs. Pallas-- Version A
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Mythology : Athena