Rift Quest:A Worn Out Welcome  

The spy is random each time, but will be one of the Visiting Scholars. After you talk to him and ask the question he will lead you outside, saying it is not safe to speak there. Then he will lead you faster and farther, again claiming there are too many ears to hear. Then, of course, he calls you a fool, changes into the Shatterbone Infiltrator, and attacks.