Major spoilers for One Piece Chapter 1166 have surfaced, and fans are calling it one of the most pivotal chapters since the God Valley flashback began.
Eiichiro Oda finally closes several long-standing mysteries with plot points that continue to influence the present storyline.
For the first time in the series, readers learn the complete truth behind Rocks D. Xebec, bringing his saga to a definitive end after decades of theories and speculation.
Chapter 1166 confirms that Rocks is officially dead, and the surprising figure responsible for the finishing strike is Figarland Garling.
Although Rocks had already taken devastating damage from both Garp and Roger, his downfall came when Garling delivered a cold, calculated attack while he was already defeated.

The aftermath is just as shocking: God Valley sinks into the sea, fulfilling the previous order issued by Imu to erase the island from existence.
How the island was destroyed remains unclear, but the consequences immediately ripple across the world and drastically shift the global balance of power.

Another major revelation surfaces when Rocks shares his ultimate ambition — to become the King of the World.
This ambition mirrors themes surrounding ancient rulers and deepens the long-observed parallels between Rocks and Blackbeard, two men who inherited the desire to stand above the world.

Chapter 1166 also includes a historic moment long awaited by fans: Roger discovers baby Shanks inside a treasure chest.
Although brief, the scene cements Shanks’ mysterious origins and highlights how deeply his past is rooted in the God Valley incident.

The chapter then shifts to the Marine underground detention facility, where Dragon is shown imprisoned for his actions during the incident.
The World Government shows no tolerance for disobedience, and Dragon’s punishment reflects this harsh reality.
However, Garp delivers one of the most emotional moments in the chapter.
He visits his son — and breaks him out of prison, contradicting his own moral code.
This act marks the beginning of Dragon’s path toward becoming the world’s most wanted revolutionary, and explains the lifelong burden Garp carries between duty and personal bonds.

The chapter closes on a heartbreaking note. King Harald breaks his horns as an act of grief and surrender, begging for peace in the aftermath of Rocks’ death.
The scene reinforces the tragedy of the God Valley arc while creating momentum for massive story developments in the present timeline.
Chapter 1166 delivers emotional closure, world-shaking revelations, and new setup all at once — everything a finale to the God Valley flashback should be. And with no break next week, the story is now accelerating toward its next turning point.