Has anyone read this? Post-apocalypse tale (plague with only rumor of a possible cure), especially interesting because all the people left in the world only live to 20 years old, and language has warped and morphed (like in Russell Hoban's post-nuclear novel Riddley Walker) This is a fifteen year old who has to journey to find the possible cure for an dying sibling.

http://www.amazon.com/The-Country-Ic.../dp/0062227092