Andrzej Sapkowski "The Witcher. The Sword of Destiny" (Повiсть)

Now Geralt knows what love is, he knows that he is capable of human feelings and the greatest self-sacrifice... A little green-eyed Ciri appears in his life. A terrible enemy from the southern mountains attacks the kingdoms that have been fighting for centuries just to move the boundary markers. And the witch doesn't care whose blood is being shed - humans, dryads, or elves...