Totally Lyra

@Mirage He's Thunderlane's younger brother.

Before I answer that question, I have to ask. How familiar are you with Nyx? Have you read Past Sins, or are you familiar with the story?

@Totally Nyx Aww, so cute!

I've haven't gotten all the way through it yet, but I do know, at least, who Nyx is err, who she's thought to be.

@Mirage I'll try to keep this spoiler-free then. All growing up that Nyx does is over the course of Past Sins' story. In all other Nyx stories written by Pen Stroke, Nyx is basically the same age. Not much aging between or during them.

Except for Glimpses, but that's something strange and unique in its own way. Not technically canon to his Nyxverse.