There are lot more twists and mysteries here. If you can get the last secret code, you are a genius...
I'm not forcing you to solve this. If you like internet mysteries, solve this if you can...
aHR0cHM6Ly9hZmlmMjcyOS5naXRodWIuaW8vc2VjcmV0Lw==
code: ax09frt
Good Luck!