The Hero's Path

Thank you for the explanation and for creating such an original version of the game. Even though the map is large, it's still interesting to play. Could you tell me how and where to upgrade the chemistry skill, as the elves say I'm not skilled enough for the next level of training? The chemistry skill is at level 4. And one more question about the quest with the orcs and the wyverns, where I have to protect the pasture. I took a tamed wyvern, and it led me to the wyvern lair, where I killed them. But the next night, they attacked the pasture again. Is this how the story is supposed to unfold, or is something glitching? I went back for the reward for the wyvern quest, but she only asks if everything is okay with the pasture. Can you help me understand?