The Burning Maze horse is Incitatus, and its owner is the third emperor, Caligula. They return to Aeithales and convey the news to the spirits. Grover tells Apollo about a part of the Labyrinth that is burning, causing droughts and water shortage in the upper world. Hedge and Mellie reveal that Piper McLean and Jason Grace had explored the Labyrinth. Apollo decided to meet with them. Meg plants the seeds with which her father had planned to reincarnate the Meliai. Apollo, Meg and Grover meet Piper and bring Jason, who had broken up with Piper, from his school the following day. Jason confidentially
Emperor Ku great-grandson to Yellow Emperor. According to speculative dates calculated after 100 BC by Liu Xin, he is supposed to have ruled from c. 2436 BC to c. 2366 BC, though other dates are also mentioned. When he became emperor, Ku added the title "Di", meaning "Emperor", or "God-emperor", in front of his name. After achieving the imperial title, Ku was said to travel seasonally by riding a dragon in spring and summer, and a horse in autumn and winter. Among other things, Ku was said to be an inventor of musical instruments and composer of songs. According to the "Lüshi