In Rockhopper's ship when he arrives! Hope this helps!
Ummm you have to become an agent in Club Penguin.
its in the ship hold
It stands for Head Quarters.
It is in Rockhopper's boat, The Migrator, which isn't always in Club Penguin because he is out sailing the open sea, but when it is parked ain Club Penguin it is parked in the beach.
in the epf head quarters
It is inside the migrator, i.e. Rockhopper's ship.
you have to go to head quarters and then you go around in head quarters a put it in your items box
No but there are secret rooms such as the HQ, ninja hideout, and captains quarters.
It opens the lock to the door that leads to the Captain's quarters in Rockhopper's ship, and it is a club penguin pin.
it is in the captins quarters on rockhoppers desk
In Rockhopper's ship. There is a key you have to find before you are able to go inside it though.
in the book room in the book of the rock hopp's journal at the last part