Three months, that's how long it's been. Constant gunfire. Lieutenant Colonel Cloaked Dagger stands with the last defenders of Canterlot. Abandoned by their Princess and betrayed by high command, his troops face impossible odds against the advancing Griffin armies. But in the ancient vault of the castle lies forbidden magic that could turn the tide - or doom them all.

With his commanding officer gone, Cloaked Dagger inherits both command and a bloodied letter revealing the truth: they were meant to die here, sacrificed for nothing more than buying time. Now, with Griffin artillery hammering at the gates and his soldiers' lives in his hooves, he must decide how far he'll go to keep his promise to bring his troops home alive.

Sometimes, survival requires sacrifice.