Volsung: "Everything on time. We have been granted our power over time and by proving ourselves. But none of us can overthrow any Dovah, and he will not be a powerful as any of us in a hundred years. 
We must keep him in once he is in. We see now with that new shout that traitors are more dangerous than enemies. They should be dealt with."

I went over this with my master, and he saw it as a good oppurtunity. So now, I'm heading back to the Labrynthian where they specified, and on the way, I heard the words of Dragonrend. When I got to the place specified, I took out the gemstone and showed it to the bodyguards, so I was let in.

Konahrik: "I am correct to assume he has joined us?"

"Yes, you are correct to assume that. I have decided to join you. And on the way here, I learned two things about this new shout. One, it is called 'Dragonrend'. Two, its words are 'joor, zah frul'."

Konahrik: "That is valuable information, thank you."

But little did I know, simply hearing the shout allowed me to use it at full affect if I spoke the words loud enough.

volsung: 'Do you know more about the dagger? Could anyone tell where it is from or who made it?'

Turns to the stranger: 'I am glad you decided to join us. We may need your skills soon. You may have overheard we have a small... problem with a traitor. As you might imagine, traitors will be punished in ways even Hevnoraak may find cruel.'

"What do I need to do?"

Volsung: 'You said that you heard the shout on your way here? You could go and see where it was coming from. Who spoke the words. See if you can find any clues. And make sure you are not seen, but I am sure you can handle that part. 
Do you have a weapon to defend yourself?'

"Just this axe." I take out an iron axe.

Konahrik: "You need something... better." He takes out a sword that looks like a Dragon Priest Dagger, but with a longer blade. "Here."

"Thanks." I say as I take the sword. "This will do very well."

Volsung: 'Remember, one man alone can not fight an army. Should you be in trouble, return here or go to one of the priest's strongholds. The guards will know you are loyal to us. Winds guide you.'