Talk:Beacon Academy/@comment-10390252-20130719100353

I'm wondering if the building with the lighthouse we see in the prologue is a Dust-powered beacon and if these things, mystical light projectors, are what keeps back the Darkness of the Grim. Each Beacon has an academy built around it so that it is always surrounded with warriors to protect it.

That might explain why Ruby told Yang that she could see the Beacon from the airship's window.