The third floor of the Swampy Tower, inside of the Alchemy Laboratory.
After occupying the highest standard Alchemy Laboratory alone, Leon had made it his home and hadn't stepped out from it for three days and three nights.
The first day, he hadn't done anything. He had just held the core of the First Grade Molten Giant, which would become the target of his experiment, and turned it round and round for careful examination, allowing the Chip to finish its final molding and design.