After the events of "Discord Teaches Philosophy," the Spirt of Chaos takes up the role of a Substitute. However, after spying on the main teacher, he decides to step in.

Twilestia shipping

Twilight gets schooled by Smoulder on a matter of archaeology.

The threat of The Collector has been vanquished. However, the nations beyond Equestria's borders stare at the land of the dual monarchs in suspicion. Meanwhile Skitch-Sketch struggles to find purpose in her new home. Sequel to A Skitch in Time.

When Zephyr hits on Rainbow Dash at Wonderbolt Headquarters, Soarin isn't sure on how to feel.

Princess Celestia is overjoyed that her long-lost sister has returned. The castle guards? Not so much.

Celestia has meet her match at the hooves of the changelings kingdoms greatest warrior

After Rainbow Dash accidentally says the wrong two words to exactly the wrong unicorn, she learns a lesson about the power of language -- in more than one way.

Flash Sentry returns home to Ponyville after a lengthy tour of duty in the Crystal Kingdom. He is not alone.

Princess Luna falls into a deep sleep, leaving Six companions to save her from her own mind.