You go to the nighclub. go up to the games room ( i dont know the name of it) play one of the games im not sure which one. after you completed the game you will get the key to the door in the hidden lake
you open up the door in the hidden lake
you dont need one :]
kinda
Play puffle rescue on the black puffles and find the key on the first level
You will get the key when you have rescued the black puffle in puffle rescue three times it does not work
go to the puffele rescue and the type what you just wrote in youtube
he is so joking. maybe he said that because there is treasure there. the real answer is that behind the door is a secret room. there is also a free pin. it is the key that you earned as a pin. when you click on it. it is called the mossy key pin
you have to be a member to get the key......go to the mine and play puffle rescue with the black puffle.....on level 1 get the puffle and wait there....you will see a squid ..go on the bubbles it produces onto the island ..go through the door in the island.. you will find yourself in a room .then you will spot the key ..pick it up and go to the hidden lake and enter ... you will find the room
you have to beat all the levels in the the black puffle rescue then when you beat it take the key when you find it and go to the hidden lake. click the door and your in. I've never beat the black puffle rescue before but i know how to get the key.
The Hidden Lake
fowllow the shaddow
you get the pin that is by the clam