As you enter the room past the room that has D'Soto's picture on the wall, I think it's a kitchen, to the left of the fireplace is a keyholder on the wall and the key's hanging off of it. Easy to miss.

V.

I'm unable to locate the key to get into the throne room in the castle..I have the mask..and the 5 elements..did the ritual...
Where is the key..

please help..I want to finish the dungeon...and I know i'm close

Any help...I've spent 6+hrs looking for this silly key...

Delmax

This is going to be extremely limited help BUT...

I distinctly remember getting that key early on, in one of the beginning rooms before I had even begun to delve into the bowels of the dungeons.