On her wedding day, Adelaide Sterling arrives at the altar — only to find her groom running off with her half-sister. Instantly, she makes a split-second decision — marry Zachary Blackwood, the notorious "Hellion Prince". Known for his wild ways and late nights at the Elysium Theater, Zachary is every noblewoman's nightmare. But Adelaide is no ordinary bride. While others whisper, she sharpens her sword — and her plan. And when enemies close in, it is Adelaide who leads armies, crushes conspiracies, and forces her crownless king to kneel — not in defeat, but in devotion.