Pretense and Poison. Sea Dragon Chronicles, #1

Breaking into the royal vault was the easy part.As official emissary of the dragon-shifter Sea Clan, Tomas is in Ardell to celebrate his brother's betrothal to the crown princess. And to renegotiate the treaty that had kept peace for 400 years. As unofficial spymaster, he's there to steal a treacherous magic before it can be used against the dragons of his clan. Lady Alisandra has spent years perfecting the art of being overlooked.
She flits through ballrooms and salons, seemingly without a care in the world. But a sacred oath binds her to protect magic's most volatile secrets. Even if that means stealing it herself. When Alisandra and Tomas break into Ardell's royal vault on the same night, they find themselves forced into an uneasy alliance. Chasing ancient secrets and renegade dark fey together draws them closer than either of them expected.
Even as their quest leads them into unimaginable danger, it's the bond forming between them that may be the greatest risk of all. Because Tomas's first loyalty is to his clan and Alisandra's oath leaves no room for compromise. Perfect for readers who love clean Snow White retellings, slow-burn romantasy with dragon-shifters, royal intrigue, and enemies-to-allies tension.