King of Blades - Two Thrones, #4

What's a royal anniversary without old flames, new lives, and a vengeful assassin?As a happy Queen Danaë and an increasingly anxious King Matthias of Ypres celebrate their first wedding anniversary and the upcoming birth of their twins, a pair of unexpected visits complicate things even more for the royal couple. Meanwhile, Danaë's brother Darius reunites with his lover Lars, only to learn that the handsome Ypresian officer has life-changing news of his own.
When a series of strange accidents begin to plague Darius, he and Lars must join forces with the master Aeris mage Petyr Epilonious to investigate the source of the mischief--before the next accident kills Darius.