Board Thread:False Info and Speculative Discussion/@comment-25038237-20150707204956/@comment-26601629-20150709172236

The whole Peter - Lydia thing was just done for creepiness sake, there is no explanation for anything going on there, how peter is able to influence lydia since he was dead, and how the bleeding hell lydia is able to bring someone back from the dead. There is no canon explanation for any of those, best we can say is because he bit her, to any of those questions. Anyways, I'm pretty sure it was established that you required, a different kind of vision to see he aura(pretty sure its not just infra-red), Lydia has never been able to see this aura, she did see it last episode but kira's aura seemed to be in overdrive, whether or not everyone else could see it, is a question we might never get an answer to. The fact that Lydia is supernatural pretty much makes every part of her supernatural, but that was never a requirement to see the aura.