Fortress By The Wall

...I'm a soldier of an imperial army! I mean, I used to be... I fell in one of the battles when we were defending the wall. ...I remember a strange tablet but I think we took it into our fortress because it looked quite rare... Maybe it's still there!

And the myth isn't here again! But at least there should be another mysterious artefact according to the message my father left me. The professor will be pleased. I'm so curious what it is. I hope it's not some ancient children's toy...