Twilight, exhausted after a day of helping all her friends, releases some stress with spike and ends up finding a hidden room in her library. Inside she finds a spell book, she cooks up a plan and starts to try out the new spells she learned with her friends. What will Twilight's repercussions be for treating her friends like guinea pigs? Will her friends take kindly to Twilight's new spells? And just how far will Twilight go with this new-found magic? Will she continue exploiting other ponies for her experiments?