Just looking at Adrian made Gigan feel as if the whole room is expanding and contracting. He is mesmerized by what is happening inside the cauldron because the color is slowly turning white. Adrian is rapidly expending mana though, but he could see that he will not need mana for the next process.
Slowly and surely, the mixture turned into a pure white solution just like the thing that is stated in the book. A beautiful explosion of color could be seen coming out of the mixture when it has been perfectly combined. A rainbow literally came out of the pot when Adrian was finished which would make one suspect that it has something to do with a legend.
"It might not be a leprechaun's pot, but I made a rainbow come out of one. Maybe if the room does not have a roof, then it might have spilled over to the sky." Adrian mumbled as his mana has once again been expended by the process.