How do you get the spring on clubpenguin mission 7?

you go to the HQ and right by the door of the gaget room is a case with 3 objects in it and they are all locked. Click on the magnet and use the code translater to spell out "key" the nyou pick up the magnet and bring it to the iceberg and click on the spring with the magnet in your hand. the nbring it to the HQ and melt it in the big machine with a freeze compartment, a wate rcompartment, and a fire compartment so click on te fire and your done.