Leo Valdez and the House of Nyx

Leo Valdez, the son of Hephaestus (Greek God of Blacksmiths and Fire), has been having a real bad day. To worsen his day, Chiron falls ill, and he would die by sundown on the next day. Unless... Leo Valdez, Percy Jackson, and Annabeth Chase find the death-defying Physician's Cure, the only cure to Chiron's illness. T...