Twilight is banished from Equestria by Princess Celestia. How will Twilight convince her mentor and friends not to banish her?

Story by PLCTheCd, commissioned by Tan575 and artwork by CSImadmax

This story takes place after the changeling invasion of Canterlot. Princess Celestia has ordered an investigation into the mystery of how the changeling queen was able to enter Canterlot and masquerade as Princess Cadence. Chief Special Investigator Moonshroud believes he has found the one pony that holds the key in solving the mystery.