Cherche et tu les trouveras.fai tourner plusieurs fois les portes sinon.jai trouvé ca, c est en anglais mai ca peu t aider
There´s a structure at the middle, but nothing to see here now. You need
3 key items ( or, 3 fragments of a key item). For now, go to the door at
the end. In there, head forward and turn on the device. Now you should
go back to the room with arachnes, and activates that device.
The coloured segment of the room will now change, and it will lead you
to a different area if you go through. Do so. This is now the room with
gears, and there is a device in this area. Activate it. Proceed to the
next room.
In this room you will find a Blue orb fragment, and at the far end, you
will find a fragment of the Orihalcon which you´ll need for his mission.
Go back to the gear room and go through the door with coloured segment.
You will see a door and a device. Activate the device and use the door.
This is another Arachnes room, and this one has a Orihalcon fragment
sitting around. Grab that, and arachnes will spawn. Kill them and leave
the room, and through the coloured door.
There´s a device on the right, as well as a door on the further right.
Turn on the device, and then go through the door. You´ll see a fragment
of the Orihalcon on the ground. Grab it and head back to the coloured
door.
You can see the structure in the middle, but you can´t reach it from here.
You do see another path, so follow that path and you´ll go to the place
where you fought Greyon. In there, you find The Fallen instead. Ignore
them and drop to the arena. A Blue Orb fragment awaits. Grab it and get
back up.
Go back to a device and activate it, and go back through the
coloured door.
You should be in the first Arachnes room, if you mess up on the way,
head back to the device and activate it, and try again. Keep doing that
until you are in the first Arachnes room ( with door on both ends).
Head through the door and go to the structure in the middle. Place the
Orihalcon fragments on it, and up the lift you go.