Matheas older brother!
His name was only mentioned once in her profile (in the first book). He was blank in my head, so I tried to breathe some life into him.
This is the first draft, but I like it so far. I imagine him to be very plain looking but handsome, unobstrusive, friendly, appearing quite average in every aspect.
In G&G, he's 20 (4 years older than Thea).