Shadow Magic

The Blackrock orcs enlisted shadowcasters to aid their attacks in Redridge, and they have brought with them devices of dark power--midnight orbs. These orbs have struck telling blows against Redridge's defenders, and it's imperative we remove the demon-tainted items from the conflict. Find and deliver to me midnight orbs from slain Blackrock shadowcasters. I will then have them disposed of, for this world would be a better place without them!