200 years after the events in the Inventor and the Red Lady, the peace talks between the Dragons and the other races of the world are beginning to falter. It seems only a matter of time before a full-fledged Dragon War begins. Simultaneously, though, various museums and private collections are reporting the theft of plain, unexceptional artifacts. However, once the Canterlot Museum is robbed, Flare Drakebrand, a pegasus Paladin with a lazy eye and stern disposition, and Princess Amber, daughter of Malice, discover shortly after that these relics once belonged to a very dark unicorn King...