Finn is from the year 2033. She has survived on her own since she was a child - living in a world devastated
by nuclear fallout and disease. She met up with the Challenger expedition when Challenger accidentally sent himself,
Marguerite and Roxton into the future instead of present day London (but that's another story).
Finn is very adept at survival and the crossbow. She also has an insatiable curiosity which sometimes gets
her into trouble.