He took the mortar from the air and laid the skin into it, taking up the pestle again and crushing the skin neatly. It broke down fairly quickly, still keeping that gold leaf color, and he had to smile. He really had done it right. "I cannot complete this process for a few days," Ariel explained while crushing, making sure no solid remained. "If you look at the notes, it specifies results when the moon is in the ninth house." That was a few days to a week hence.
Something else he also saw fit to comment on. "Something you ought to keep in mind, as well - this is not, in theory, designed for immortals." It was worth mentioning. "I've completed the mixture correctly, as you saw, but it might simply be too weak. It might succeed and do nothing, or only work to a degree." It was not only to prepare the demon, but also himself. If he failed, he'd already succeeded beyond his expectations.