Sequel to The Celestia Code. When the monsters created by the dark crystal engine escape their prison, it's up to Princess Twilight to deal with them. She gets help and advice from Princess Luna, but things don't go as planned.
What happens when one of the Cutie Mark Crusaders actually gets their cutie mark? Surely, she'll feel out of place while her friends are still searching for their cutie marks. True friends, like the CMCs, will always stick together... right?