Percy, a renowned Jedi Knight, goes missing, as Jason simultaneously appears at the Jedi Temple. Hidden details and mysteries lead to an elaborate quest, leading to more questions than answers. At the crossroads between time and space, a reunion will take place, a legacy fulfilled, a betrayal will occur, and the balance of the galaxy will be thrown in chaos. Optima fortuna to all.

Camp Half-Blood faces a new threat; a secret society worshipping the Ten deities who manifest in the shapes of dragons. Meanwhile, a believer of the Ten is trained to infiltrate Camp Half-Blood as a demigod. Yet over time, she can't help but feel lost and disconnected with her mentors. As the followers of the Ten prepare to invade the camp, she must decide her true loyalty.

Percy investigates a mystery near Naboo. Leo escapes from corrupt government enforcers on Coruscant. Jason wakes up alone in a dark room, not remembering anything. Annabeth leads an army into battle, fearing a trap. Nico learns about his dark past-and his future. Piper interrogates a prisoner with the strangest of tales. All the while, the wheels of the Senate, turn.