Huh. Surprising. The book that was the template for the first season, Elfstones of Shannara, was the very first book I read that contained so much grim death I couldn't care about it any more.
(I loved the ripoff, though. Can't spell out what that is without spoiling at least one of those works, and it's not light-hearted enough for OP either, but it was just... pure.)