Athrak was a magpie who followed orders from Silth. He and the rest of his colony guarded the sky so that nobody could escape or enter Marlfox Island. They attacked a kingfisher who later gave information of Marlfox Island. They wounded the osprey Megraw while he was asleep, dislocating his wing, but unwittingly created their own worst enemy doing so. After his wing was healed, a vengeful Megraw returned to slay Athrak and his entire colony.