The age-regressed Rainbow that was dropped off by Twi at Canterlot Castle-with everything she would need.
Looks like it's April Fool's día in Ponyville-and Pinkie and arco iris are on fuego with their practical jokes. Every poni, pony became a victim-except Princess Twilight Sparkle, who stayed inside to avoid the mayhem, watching from one of the windows of her castle. As she went to take a nap, arco iris and Pinkie quietly went in to pull something off...
Rainbow: tu got the red paint??
Pinkie: Are we really gonna do this? If we do, she's gonna grill our plots! Sorry, I'm not gonna get in trouble. Later! *takes off*