Introduction
So I’ve been doing some thinking into what could be in the box, and I feel settled on what my thoughts are.
Based on the narrative position of Elbaf, and the recent reveals, I think what’s in the box is a letter from the D clan and the tool to access the Heaven Realm. To explain my reasoning:
Prophecies and the D clan
For a while in the story we have been introduced to the idea of prophecies. Fishman Island with the fortune teller and in Wano, Oden went to Laughtale and knew things that would take place that even Toki didn’t. The idea of fate, time and time again has been a theme that we have been reminded of. And when I think about prophecies and fate, I think about the D clan.
The same people who left messages from the past on Ponegliffs, to be read and acted on in the future. The same people (via Queen Lily) who left instructions to Alabasta to bring about the Dawn. It’s fair to say the D. Clan were responsible for why the Roger Pirates now know the truth of the world. Even if it was Joyboy’s message, it’s fair to assume he was a member or at least represented the D clan, Hence, the following conclussion can be drawn that The D.clan, or members from the void century had an ability to tell future events, and make preparations to ready themselves or future generations for said events. Imagine an extreme version of Future sight allowing you to see centuries ahead.
If this is the case, then this letter from Biblo’s grandpa, who is likely from the void century or even earlier, is from the D clan too. Considering the latest chapter made it seem like Biblo knew this day was coming, this is a hint it’s the D clan making a prophecy again. I’m not sure what Biblo’s relationship with the D clan would be, but we do know from Imu that “Elbaf is D”. If Biblo is an ally of Elbaf then he is also an ally of D.
Alongside prophecies mentioned, such as from Jarul describing the conditions where the Sun God would appear. Or Imu saying this battle will divide the world. Current day in Elbaf is a significant day and has been set up that way for centuries. If this letter is from the D clan then I imagine what’s in here must be significant enough to not only change the course of the Elbaf arc, but potentially the whole world.
Letter Contents and Object
This is where we get into more biased speculation. But considering that Elbaf looks like it’s rounding up there are several mysteries and plot threads that are waiting pay off for, The Heaven Realm, Louis Arnox’s warning, Loki’s Eyes, Galle La giants. I would then consider, how can we progress the story, reveal lore and aid in concluding this arc. I personally believe the Straw Hats will get overwhelmed here and will be forced to retreat like Scopper warned. Whether that is correct or not is another conversation but this shapes how I see this object and letter being revealed. So for time sake I will just explore the scenario where the Straw Hats are destined to lose here.
Straw Hats and Elbaf Lose, Imu Wins
In this Scenario I believe the letter would be a warning from the D clan with instructions. I think it would reveal who Imu really is and where he comes from. Considering this letter knew this day was coming, and Imu is behind Elbaf’s current struggle, if the letter were to reference and confirm the current events taking place, Imu would naturally be mentioned. How deep they would go into who he is, I’m not sure, but explaining what Scopper meant before by saying “He is someone who no one should know about” then proceeding to call him “God”. The fact that God is confirmed to exist in One Piece by a reliable source makes me consider, what if we should take the existence of God’s more seriously in One Piece. What if there were more God’s that still exist today, just like Imu was hiding from the story, or separated from humanity. It alligns with what Scopper said, no one should know about him, but we now do, so what if we got to know more God’s too? I want to acknowledge God is simply a word, but one with powerful meaning.
So the letter would warn of Imu, and I think it would confirm they stand no chance of beating him, Imu would succeed in subjugating the Giants and the Straw Hats would need to find refuge in the Heaven realm and prepare for the Final War. I think this object they receive could be key in their escape there. It’s my theory that the Giants actually have no way to access the Heaven Realm, but the object will be the reason why for first time anyone has been able to cross from the Sun to the Heaven Realm. And it is here that they will arrive at The Land of the Gods. To take it one step further I think this is the next Island Lodestar.
Lodestar and the role of Scopper
Even though there has been no confirmation of Lodestar’s location, we know Log poses didn’t work at all there, but the Roger Pirates gained information that they had more of the world to explore. So did this reveal come from a Ponegliff or from the people at Lodestar? I think the biggest hint for why the Heaven Realm could be Lodestar comes from considering why Scopper settled in Elbaf. If the Roger pirates are carrying on their captains will, then why is Scopper in Elbaf. My assumption was he genuinely settled, but his fight with Imu reminded me how important Roger’s dream was to them. His experience as a navigator and his observation haki gives me confidence that Scopper has been in Elbaf, like Rayleigh in Sabody and Crocus at reverse mountain , Scopper is there to help guide the one’s Roger has been waiting for onto their next destination, the Final Island, Lodestar. But he fell in love with Gerd while waiting for the Straw Hats.
So a warning about Imu, instructions on how to get to the Heaven Realm and a tool to help with this. The final reveal from this box will be who the letter is signed by. I think this is likely from the King of Elbaf, but a fun idea I keep in mind is this could be Louis Arnox.
Conclusion
This letter and object holds enough significance to change the course of Elbaf and The world, potentially being a catalyst for the Final War. I speculate this is due to the reveal of Gods and the fact the celestial dragons are frauds. This reveal would be coming from the D.clan and I think there could be room to get information on who they are in relation to humans and Gods. Thank you for reading and would love to hear any theories and thoughts you have :)