It's a familiar sound that draws him out of sleep, out of that senseless dark. He's heard it before, time and time again, in Adams Air Force Base. And when Neil snaps open his eyes, it's appropriately ED-E that he sees first, hovering nervously by the closed door.

Probably because Alex is shouting some unhappy things outside, at something that likely caused that memorable sound.

If memory serves him right, Neil knows exactly who that something is.

He rolls off the bed and onto his feet. Immediately regrets the act a second later as pain and nausea hit him fast and hard. Neil doubles over, form collapsing against the mattress, a hand pressed against his mouth to keep from vomiting. Dogmeat instantly is against him, still quiet despite the noise, using himself as a support.