It's in the plaza in the silver thing in front of the pet shop.
I don't think there is a secret passage way on Club penguin because all the available places on Club penguin for members and non members have been discovered and are on the map.
Get a log
in many places around club penguin, such as the sewers..
Yes there is a secret mission on Club Penguin.
There are two secret rooms in club penguin, which one are you talking about?
There are tasks on Club Penguin if you are a secret agent.
The secret code to club penguin is clubpenguin
There is no president in Club Penguin but you can join the secret agent club.
It means that your penguin is doing a secret mission (You have to be a secret agent which is the secret agency).
underground
aunt artic is the director of the club penguin secret agency this guy figured this out and told me
No there are other hidden secret items in Club Penguin in the Catalogs.