The following is based on the dream I had today. The premise is that, with Wranglum already defeated, Princess Sparkle finds the disagreements in her school increasing. She constructs a magical imaginary opponent, the Bookmaster, for the school to watch out for. But surprisingly, it has things to offer a lot of students and some teachers take his side. Then, to save reputation, Sparkle has to start leading both sides and even enter her own school as a student. Rose and Will get trained for different sides: Rose for the school, Will for the agents. Rose gets an order to intercept and capture Will when he breaks into the lab district, she surrounds him with magical walls but apparently, he already can run over that, defying gravity. He escapes, shouting "But I've got tricks, very spiffy".
Rose and another Filly try to catch him again with a barrage of spells: "Area slowdown! Floor spikes! Radar blaze! Lazer raid! Busy roller!" Big cylinder kicks Will to the floor once. "...no! Dispel." Will flies away. "Now he'll report this place to Twilight. Why do I keep helping him?" - Rose says.
Then, when Rose tries to go outdoors, she gets into Will's hypnosis trap spell on one door, and she begins to think the white horse-shaped mannequin nearby that Will created, is an actual horse. "I won't be able to open doors in their maze, but they will," - he grins behind a corner and continues watching. "Lead the way, Bella" - Rose spoke walking, holding the floating horse that was slowly following at the side and a bit behind her, mumbles slowly and goes along the beautiful indoor maze with white grate doors lit by white magical flower-shaped decoration lights, opening the correct grates with magic. "Bella, just give me more light.."
Last metal door sloped upwards, and Will finds the door outside. "Bingo. Agent Scorpio, Agent Scorpio..." - Will flies away. Battiwigs, who was waiting for Rose near a fountain decoration in the same room, doesn't understand why the 'horse' slowly ran into a wall near him, shaking. "Ya ninja, Rose, ya ninja" - Battiwigs says. She looks at him worriedly, not hypnotized anymore.