Lost Destiny (Heroes of Olympus)

A daughter of Hecate with silver-white hair and a tongue sharper than a drakon's tooth, Cassia has always been an outsider-even at Camp Half-Blood. She prefers the company of her baby dragon, Nox, and the ancient spells of her spellbook to the gossiping campers. But Cassia is carrying more than just magic in her veins; she is the last descendant of a royal bloodline that once ruled the skies with fire and blood.

Leo is a walking explosion of bad jokes and hot flames. He's everything Cassia can't stand-loud, messy, and relentlessly cheerful. But as the son of Hephaestus realizes that Cassia is the only person in the world who can walk through his fire without getting burned, the friction between them starts to spark something more dangerous than a Greek fire leak.

In a race against giants and the earth goddess herself, Cassia must decide if she'll stay hidden in the shadows or embrace a legacy that could save the world-or burn it all to ash.

Leo Valdez x Oc