When entering the locked door on the Isle of Ashes,
open the chest to the right, just inside the door.
Do not click on the book -- this will take you to the
next part of the game. Instead, go back through the
door and enter the Verhoffin Ruins. Do not enter the
doors. You are not strong enough to kill the skeletons
in there. While in here, go down the hall and around the
corner to the end and open the chest. Take everything
and leave. Go back to the now opened door and look at
the chest. It should now be closed. Re-open it and take
everything. Go back to the ruins, leave ruins, go back
to chest, and the chest will be closed again. Keep going
backwards and forwards collecting items from same chest.
Note: This was done with the v1.2 patch of the game.
Go to Thjorgard Training Hall. Fall down the chandelier
and go west. Break the crate where the black chest is
located and get the artifact. Leave through the door with
all the lizards and return. A different powerful artifact
will be there every time.