When a Victorian fossil hunter discovers a baby pterodactyl, she vows to protect him with the help of a fellow scholar—her former fiancé—in this enchanting and transporting historical fantasy.

Mary Anning wants to be a geomagician—a paleontologist who uses fossils to wield magic—but since the Geomagical Society of London refuses to admit women, she’s stuck selling her discoveries to tourists instead. When an ancient egg hatches in her hands, revealing a loveable baby pterodactyl Mary names Ajax, she knows this is the kind of scientific find that could make her career—if she’s strategic.

Mary contacts the Society about her discovery, and they demand to take possession of Ajax. Their emissary is none other than Henry Stanton, a distinguished (and infuriatingly handsome) scholar... and the man who once broke Mary's heart.

Henry claims he believes in the brilliant Mary, and that he only wants to help her obtain the respect she deserves. She knows she can't trust her fellow scholars, who want to discredit her and claim Ajax for their own—but can she even trust Henry, who seems intent on winning Mary back?

Now Mary has a new mystery to solve that's buried deeper than any dinosaur She must uncover the secrets behind the Society and the truth about Henry. As her conscience begins to chafe against her ambition, Mary must decide what lengths she’s willing to go to finally belong—and what her heart really wants.