on level 1 follow the shadow of the squid. it should lead you a hidden place. that's where the key is.
On puffle rescue pick the black puffle .When you get to the level with a squid follow it.
The black puffle
The black puffle.
black puffle
The black puffle.
the black puffle catches fire on club penguin if you feed it a puffle-o or if you play with it
the black puffle
the black puffle
te black puffle
be a member and go on black puffle rescue get the key and unlock the door /this may take a while/.
It is normally available in the Penguin Style catalog during the Puffle Party, as a black puffle lover cape (member item).
The black puffle, when it is fed an O' berry.