I forgot to remember the name of the province the third key is being stored in (that is, the fifth key you get; the province is an elven wood of some sort). Since I don't want to go back to the Astral to check, does anyone know what the province I should be looking for is called?

Edit: Well, it turned out not to be on the shard I was on, so I was able to go back to the astral to check. For the record, the name I was looking for was the Wood of Lost Dreams (and more precisely the tower of hope within it).