Enchantment and Iron by J. G. Gates

A dragon rider. A biplane pilot. Two enemy nations, one epic love story.

Her lover is dead. Her land is in flames. With her kingdom hanging in the balance, Essa leads her army of dragon riders in a desperate effort to defeat the evil men who killed her mother. But she finds herself a prisoner in her own castle. Her enemies want to make her queen as long as she serves as their puppet.
From her gilded cage, Essa hatches a plan that could win her revenge—perhaps at the cost of her life.
Little does she know, her lover from the enemy nation across the sea, Charlie, is still alive. He has become a vampire, and he’s coming for her—and destroying anything that stands in his way.
Will Essa’s revenge plot work? Will Charlie reach her in time? Or will the forces of political power and dark magick arrayed against them prove too much?

Dragons and Aces is an enemies-to-lovers romantasy series featuring a morally gray love interest, mistaken identity, court intrigue, and spice. It is for readers 18 years old and up.