The Demigod Files
Persephone calls Percy, Thalia and Nico, the children of the Big Three, into the Underworld to retrieve Hades` new sword from a demigod spy who stole it. Persep
Persephone calls Percy, Thalia and Nico, the children of the Big Three, into the Underworld to retrieve Hades` new sword from a demigod spy who stole it. Persephone gives them a magical flower to track the thief. Percy, Nico and Thalia must retrieve the sword before time runs out.
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