Six Crimson Cranes Tome 2
The Dragon's Promise

Princess Shiori made a promise to her dying stepmother that shell return the dragon pearl to its rightful owner. But to keep that promise, she must navigate a perilous web of intrigue between dragon, human, and demon alike. The pearl itself thrums with malevolent power, jumping to Shiori's aid one minute and betraying her the next. Not only must she fend off those who desire the pearl for themselves, she must also come to terms with her own forbidden magic, before enemies new and ancient threaten to shatter her family and sever the thread of fate that hinds her to her betrothed, Takkan.
It will take every ounce of strength Shiori can muster to defend the life and the love she's fought so hard to win.