Yes!
The Book of Nalu!
After Marvin entered the Sky Tower, he had been repeatedly reminded of the word, "key".
Before, he didn't really understand what it was referring to.
But he now understood it very clearly.
The 4th Fate Tablet looked like a mystical vessel that contained endless Laws and knowledge.
To possess it was to possess the strength to contend against the Gods of the 3rd Era.
It was even more so because the 4th Fate Tablet was complete, while the others were only fragments. It was highly possible that the person holding this intact Fate Tablet might become the most powerful God in history.
Marvin didn't plan on ascending to Godhood, but he was unable to stop the reaction between the False Divine Vessel and the Fate Tablet.
Actually, he didn't even know what exactly had happened. The Fate Tablet simply entered the False Divine Vessel.
