I got through the first gate with slime form, the one that can be seen on the map, but can't get any further. It just tells me the door is locked when I try to open it, and that the key is underwater. Unless I'm at the totally wrong location.
Oh right I am sorry I am so stupid.
Absolutely my fault, there is a key for that door, it is buyable in the underwater town. If you werent there yet, you migzt find some clue of how to get there in the eastern plains if you have the needed abilities already.
Hope this can help! Feel free to ask more if not!
And very sorry for forgetting about that^^"
6 days ago (+1)
The only key I could find was the magic key, and it didn't open the door. I'll keep looking. But there doesn't seem to be another key to buy there.
6 days ago(+1)
I got into the other warehouse, I didn't know this one was part of the guild and impossible to enter lol... and got the form from it!