Thanks, but I already figured out the problem: The distiller was already filled when I gave the spores to Charax, that's why it didn't work. I just used the distiller to empty it before I talked to him and it was all fine from there. The ending is kind of cool. I'm playing the game again and I have gotten through most of it and I'm only on day 6. You guys are right, it goes much faster the second time.
Anyways, the real reason I'm posting is to tell you that the book Larisa has is of NO significance as it is Timon's book about the seldane ruins, of which there are like 5 copies around the island (kind of a pain b/c they all look like sapphire books!).