Karnog had heard about this, here and there. Nothing too solid, mostly tavern rumors. Yet, to hear it from this... elf who he didn't even know. Well, he did save him, so he now owed him a dept. 

Shaking of his displeasure of having a life dept, Karnog asked with a tinge of excitement in his voice, "Will we be fighting these deadra?" 

A deadra is one of the most well armed, well equipped creatures in Tamriel. To kill one in battle, will garner much honor and glory in the eyes of Malacath.