Operation Repelling Darkhans

I still don't know what the Spriggans are after, but I did find out what their strategy is. The Spriggans' leader is Darkhan. Their strategy is to advance toward Storm Road and completely stop all transportation between Deribelle and Tor Fortress. This can be done by blocking Dead Line and the Nightmare Valley. Does it sound impossible? Well, the Spriggans have never been so united, so it may happen. That means the only thing for us to do now is destroy their center. Yes. That's it. So I want to ask this of you. I understand you are still tired after your last battle but there is nobody else who can succeed in this dangerous mission. Dispose of Darkhan on the border area between Dead Line and the Curse Valley and bring back Darkhan's Sword. Please. May the guidance of the Elementals show you the light!

Dispose of Darkhan, leader of Spriggans, on the border area between Dead Line and Curse Valley and bring back Darkhan's Sword. May the guidance of the Elementals show you the light!

I thought you would succeed, but your abilities exceed my expectations. Now let's finish up what we started.