Sonnambulo

Murmurs lift into the air as the young Imperial passes by. "He's asleep," they say, upon first noticing him. "Watch...he does not run into anything."

Sure enough, Sonnambulo wanders while he sleeps. Elan could not wake him, for no matter what she may try in order to rise him from his slumber, he would not respond. She realized only after he awoke on his own that having him awake was not necessarily a good thing. While he may mumble frightening things and twitch and gnash his teeth while he is sleeping, he is far more violent when he is awake - many of the clan members consider it good news that he only wakes for a few days at a time.

Elan keeps him only for the fact that he wandered into the lair, sleeping and head-drooping, as a hatchling. The fact that he survived while sleepwalking through Plaguelands is a sign - though of what, it's unsure. A gift, perhaps, from The Pestilent One.