Neva is born into a world of trickery and illusion, where fortunes are won and lost on the turn of a card. But she is also born with an extraordinary gift: she can predict the weather. In Regency England, where the proper goal for a gentlewoman is marriage and only God can foretell the future, this is a dangerous power to possess.

In order to stand up to the men of science, Neva adopts a sophisticated male disguise, created by her brilliant clockmaker father. But what will happen when she falls in love with a charismatic young man?