"Philosopher's Stone?"
"Philosopher's Stone, Philosopher's Stone, or some kind of Medicine of Immortality, these things in alchemy are synonyms, representing that true power of miracles. You can use it to exchange for god-like powers or obtain eternal life... At least when I was young, many alchemists were pursuing immortality."
Merlin recalled his youth, a hint of nostalgia in his words.
"At that time, my teacher was still alive, and alchemists weren't as rare as they are now. Sometimes we would trade resources with other alchemists, and when necessary, we would slightly exchange technology. However, more often, it was about plundering each other's knowledge. I learned my swordsmanship during that time, killing quite a few alchemists pursuing immortality."
