Barry was in his element, making calls, making things happen, even if he didn't entirely know what those things were. He wouldn't let the hot sheriff chick down, even if every noise he heard from outside--and he heard plenty--made him jump. He had only paused to text Al a message, told him to hurry up.
Suddenly, Barry froze in mid-dial: a window broke somewhere in the building, and then the lights went out.
Departure Manuscript: Barry in the Sheriff's Station
