"Philosopher's stone? I could see why it reminds you of that." "Antidote? Oh heh, there is no antidote for it, which is why it's so deadly. Trust me, I tried making an antidote for it without success. But you could try." "I got the blue vial from my home country. People risk their lives trying to get that stuff. My people are trying to find ways to replicate it. And the black one..." She scratches the back of her head. "It's a secret."