Twilight's had it up to here with Spike's antics as of late. The dragon's only become more unruly and unprofessional with age, and she's at her wit's end on ways to rein him in. But when Spike messes with an unstable shrinking potion, she finally sees a way to teach him a lesson.
And Twilight Sparkle loves teaching lessons.
[Micro] - Spike is of the age of eighteen in this story.
Cover artwork drawn by Gigapon.