Niobe was the first Specter to announce himself during the invasion of Athena’s Sanctuary. As the Specters reached the Taurus Temple he stepped forward and defeated Taurus Aldebaran with a deadly pheromone. He choose to stay behind momentarily as his comrades continued ahead. When Aries Mu arrived at the temple he revealed himself by splitting the remaining figure of Aldebaran. The Gold Saint had however left a hint about Niobe’s deadly pheromone in his Cosmo to Mu. Trying to engage Mu in combat, he was ignored by the latter, who considered Niobe already dead. Niobe was then completely torn apart by the delayed effect of Aldebaran’s Great Horn.