The Omen Prodigy Walnut

One dimension, two dimensions, three dimensions, seven. You are a child genius who theorized how to access the seventh dimension. In your spare time you compose piano music in the big beat genre. Even though you're smart, you're still a kid and enjoy movies about banshees and tennis. You do part time work for The Commonwealth of the Arachnid Queen because they offered you a near unlimited supply of skulls.