Get smart-ish The league of unexceptional children series, book 2.
A hilarious and action-packed sequel to The League of Unexceptional Children ! Jonathan Murray: Twelve years old. Wears khaki pants to tell the world he plans on driving the speed limit when he grows up. Saved the world once; it was probably a fluke. Shelley Brown: Twelve years old. Narrates her imaginary exploits as if she is the subject of a documentary film. Saved the world once; it was probably a fluke. The Prime Minister of the United King...