A major spoiler for the series finale of FX's Sons of Anarchy was accidentally revealed this week and show creator Kurt Sutter is apologizing for it.

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The show's official complimentary book Sons of Anarchy: The Official Collector's Edition was released this week instead of after the finale on Tuesday, resulting in early readers discovering what happens in the final episode.

One major spoiler is printed on one page, which you can view here at your own caution.

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After receiving word of the too-early shipping, Sutter released an extended note apologizing to the show's many fans.

"It has been brought to my attention that our SOA Collector's Edition book has been sent out a week early by some distributors and book outlets. This book contains details about the final episode of the series. This, my friends, is a storyteller's worst nightmare," Sutter wrote. "I wanted this book to be a complement to the show. It contains personal messages and photos from the cast, in-depth behind-the-scenes information and detailed breakdowns of episodes. It's a smart, well-conceived book that I was very excited for the fans to have. After the motherf---ing finale."

As the official description reveals, SOA: The Collector's Edition features a look back at the final season, with an exploration of "the series' end and the Teller family legacy."

Sutter's apology admits that he wants to blame "a thousand f---ing people" for the early release, though "the burden is on me" at the end of the day.

"I f---ed up. It was my idea for the book, so ultimately, I am to blame," he wrote. "So if you received a book, I apologize. I ask that you not share your wrath or pain or opinion in social media so as to not spoil the experience of others. There is no excuse for utter ineptitude. It pains me that this will be the parting memory of some fans. I hope you all tune in for the finale. It plays much better than it reads."

Sons of Anarchy: The Official Collector's Edition is scheduled to be released on Wednesday, Dec. 10, one day after the series finale. It is available for pre-order on Amazon.

Sons of Anarchy airs its series finale Tuesday, Dec. 9 at 10 p.m. ET/PT on FX.

Watch the promo for the final episode of Sons of Anarchy here: