I think the agent handbook is gone after the popcorn explosion in the HQ.
You have to buy the book! Then you can see the code!
To get the decoder you have to be a Secret Agent. If you are in the handbook there is the decoder which is very useful.
there is no 161 in the handbook
There is a book called Secret Agnet Handbook. But u have to know wats in it to unlock things
I want the answer for unlock Secret Agent Handbook pls.
Rockhopper
secret :)
Pizza
new
spy i think
monkey
poo