(This is a side story to the Tail of Robin Jack by CartoonNerd12.)

When the Chimera Alliance of Heathmoor first learned of a prosperous land called Equestria to far northwest, across the northern mountains of Valkenheim, it was decided that the Gryphon, Holden Cross, should lead an expedition to this strange realm. Upon arrival, they soon learn of a dire threat to the land. The evil, traitorous Prince Blueblood has seized the throne, and has become a tyrant over the common people. His Sheriff, Gladmane, enforces the Prince's rule with an iron hoof, and those that resist them often "disappear". The true rulers of Equestria, the Great Queens Celestia and Luna, vanished beforehand.

The Merry Mares, a group of outlaws dedicated to helping the poor, led by the courageous Robin Jack, are among the few that openly defy the Prince's reign. Standing beside them are a group of Knights from the capital of Canterlot, led by the noble Sir Spike.

WIth this in mind, the Gryphon sends three of his best spies into the capital city of Canterlot to rescue Princess Cadance and her husband, Prince Shining Armor. They have been imprisoned by Blueblood's command, and the Alliance intends to free them and begin the long struggle to free Equestria from tyranny.
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Crossover with For Honor, a character roster can be found here.
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