The castle of the two sisters was a peaceful and quiet place. That’s why Star Swirl the Bearded decided to make his home there. It would serve as the perfect place to study magic. at least that was supposed to be the idea.

Late one night a group of thieves broke into the castle's royal archive. Star Swirl was forced to battle with the thieves. A fire broke out in the archive, distracting Star Swirl long enough to allow the thieves to get away.

Perplexed by what had happened Star Swirl, was about to make his report to Princess Celestia and Luna, when he noticed that something was missing. The thieves had made off with the crystal of harmony. It was now Star Swirl's mission to track the thieves down.