Mollificent dreams impossible dreams of a life beyond her work as a servant in the castle. When her make-believe world lands her in big trouble, she fears she can never recover. In her darkest hour a small bird appears, offering passage out of the cellar and into a secret tower where the king's forgotten son lies deathly ill.

The only chance for the prince's cure is a magic herb that grows far away, and Mollificent is the only one who can collect it. The journey takes her through a forest filled with dangers and unsavoury characters. Along the way, she must apply every bit of her wit and will to accomplish the mission.

When an unforeseen hurdle delays her return to the castle, she wonders if she will ever see the prince alive again. And how will her own life be changed forever?