The Fire and the Flood

Set two months after Iron Man 3. Tony's still trying to cure Pepper of Extremis, but it's not going well. Pepper wants Bruce's help. Tony finds it hard to stomach. Fluff, angst, adventure.

Written with complete disregard for the specifics of the Marvel universe, and, uh, science. Wait, no, I mean artistic license! Please feel free to point out anything glaringly incorrect.