The I-45 was obviously the central artery of the base—there was a set of recessed tracks in the very center, and drones rolled up and down it carrying boxes of cargo. Ponies moved in both directions along the tracks. A few of them glanced briefly at Sarah as she emerged into the hallway, but none more than a few seconds. Her light-blue body with bat wings and huge ears didn’t stand out here as much as she would’ve suspected.