In this wistful novel of sweeping romance from New York Times bestselling author Maisey Yates, a woman of logic and a man whose presence in her life defies it will find that science works best with a touch of magic and a heap of heart.

Emotionally guarded ornithologist Lydia Martin does not believe in omens, miracles, or providence. Only science. And maybe, in the case of Henry Thorne, the inexplicable.

Going as far back as kindergarten, when Henry stole her crayon, they’ve collided during every pivotal moment of her life. Elementary school in a new town. Backpacking in Croatia. A bar in Spain. Now, as Lydia fights to conserve the ecosystem on a remote Pacific Northwest island, her seaplane pilot is none other than the alarmingly handsome Henry, who’s eager to help with her mission. Predisposed, time and again, to chance encounters—the data is provable—they’re finally getting to know each other after twenty-seven impossible years.

The emotional walls are coming down. The attraction is undeniable. And Lydia, against all reason, is starting to believe in destiny. And in the magic between science and certainty—in hummingbirds as symbols of good fortune, in raccoons as agents of cosmic signs, and in a love that has defied every logical explanation.