you have to work your way through the Pokemon mansion and go out the right door while using the correct switches its and the very end of the Pokemon mansion
The secret key is in the Pokemon mansion (Cinnabar Island) in the basement.
The Secret Key that you get in the Pokemon Mansion is used to enter the Cinnabar Gym.
its in the mewtwo mansion in the basement
Yes. The Secret Key is needed to open the Cinnabar Island Gym. The Secret Key can be found on a table in the northwestern room of the basement.
With the secret key which is found in the Pokemon mansion.
It is in the Pokemon House (in the basement), left of Cinnabar Island.
On cinnabar island but you need to get the secret key in Pokemon mansion first.
Find the secret key in the Pokemon Mansion,( Next to the gym)
just search for it ............or just go up until you found a table with the floor not broken and you will see a pokeball just get it that's the secret key!hope that help.The Secret Key is in the Pokemon Mansion on the Northwest end of Cinnabar Island.
the cinnabar island tower at the bottom
I believe it is on Cinnabar Island. To enter the gym, you have to get through the Pokemon Mansion and find the secret key.
You will find it in the Pokemon mansion on cinnabar island.