Possibly the most depressing chapters in the Bible | First impressions of Judges 17

So I asked my lecturer for permission to write an essay on the closing chapters of Judges for two reasons - 1) I don't think I've ever heard a sermon series on these chapters and 2) they are really really strange and maybe quite depressing and even quite violent! Still, they are in God's word so what I hope to do is to find some encouragement and hope from these seemingly depressing chapters in the Bible.