Centuries ago, Luna was shunned by her ponies and exiled at the hooves of her elder sister. She perished in her solitude, but her soul lived on through a stone. And some unknown time later a voice calls her to come out.
A veteran turned Private Investigator sees a cellist on stage. He falls prey to her... Amazing grace. As they grow fond of each other, Thunderhoof gets sucked into a conspiracy, and is forced to answer questions way above his pay grade.
All the events of the seasons of FiM have happened before. Maestro Spectrum knows all of the events from the start, and crafted an artificial 7th Element of Harmony to try and stop it. However, he is tired of failing ... Something needs to change.