I like how the Guide really clarifies Amun's real fears of Aro finding out that he was there. He was terrified that Aro would take Benjamin away like he took Demetri away (thanks to Chelsea's powers of unbinding members of a coven). When I read that, it was like "ooooo, now we have it." I mean, you could tell from reading Breaking Dawn and what Edward says that we knew Amun was afraid of losing Benjamin to Aro, but Wow! to have lost Demetri! No wonder Amun was in such a tizzy.
"I squared my shoulders and walked forward to meet my fate, with my destiny solidly at my side."