A sudden change of pace#2

"Above everything else, we need two things to even start hoping for our survival against the Parasites. One is a safe haven, a place where humanity can survive and build its defences and a place where people can become stronger and have its hope pinned. I will be making Arcadia Academy as the base and set up enough defences to make it strong enough to stand against a full blown attack," I spoke as I observed Amelia who began pondering over the whole situation.

She thought about it for a few moments before speaking,"I would like to know about it in more detail. What's the other thing?" she asked as she looked at me.

"A device that would give a warning prior to their arrival. While we can't predict when they would come precisely, an alarm that would give us an idea of how much time we approximately have would be really nice," I spoke as I began pondering over this whole situation before looking at Amelia who spoke,

"Sure. Just tell us what to do."