first line:Berlin
second line: London
Third Line: Zagreb
you do
you need all the clues
first line:Berlin second line: London Third Line: Zagreb
good
All you have to do is finish the mission! That is the only thing!
type in Croatia
London Berlin zagreb
It is already available at the 39 clues mission.
You don't hehe haha hohoho
First beat the first mission the you unlock the second one.
you have to read all the books of th3 39 clues which you can buy in schoolastic or other places, but the cheat code is P4G4MPNNXP
London, Berlin and Zagreb