I have a character i made for season six. I have played this character through most of season six, as much as I could have played him through. He will soon be retiring.
The Sky Key:
Now I understand there were five pieces of the Sky key. There was the core which was recovered in #6-00 Legacy of the Stone Lords, which my character played through. I seem to remember that a first piece of the Sky key was recovered in #6-14 Scions of the Sky Key part 3: The Golden Guardian and a second in #6-21 Tapestries Toil, and a third part in #6-20 Returned to the Sky.
Just out of curiosity where was the fourth piece found?
I am really just curious.