Luna's rebellion ended in failure and her head General is thrown in the dungeon. In lieu of executing him, Celestia decides to use the General as her personal assassin. When she appoints a young unicorn mare as her new personal student, she decides that her assassin is the perfect body guard to keep the young mare safe from harm. Unfortunately the assassin and the student can barely stand each other.

Cover art by Decoy the Skeletal Boy:
https://www.deviantart.com/theflamingalberto
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