"The Legend". Problems with the walkthrough.

In this thread, I suggest we discuss various problems encountered while playing this game, as well as share some secrets or our own tactics for solving problems. Since the game has many quests and interesting features, I think this thread will be relevant for those who are playing the game. So, let's start with me: how do I feed the swamp spirit? He says he will grind spiders and snakes from the knight's army, but I have spiders, and I don't know how to feed him. What should I do, please advise. Game version: 1.2. Found out: the Swamp Spirit doesn't eat cave spiders; he needs swamp spiders, or snakes from there.