Magic Duel, part 4

Sneaking Fluttershy back into Ponyville was, fortunately, a lot easier than getting her out. After that, Twilight and Zecora spent the rest of the night fine-tuning the unicorn's plan, while their friends on the other side of the wall carried out the instructions sent with Fluttershy.

It's nearly noon when Twilight and Zecora walk up to the borders of Ponyville. She has to squint, but Twilight can just barely see the strip of red cloth tied to the peak of the Carousel Boutique--the agreed-upon signal that the plan is ready for execution. She looks back at Zecora, briefly, and the zebra gives her an encouraging nod.

Nix your magic. Use the six.

Twilight walks up to the edge of the forcefield and raps her hoof sharply on the wall. Rings of blood-red light ripple out from the point of contact. That ought to get Trixie's attention.