At 34, congressional staffer Mallory Hale is about to embark on an adventure completely off the map. After a whirlwind romance, she is hopelessly in love with two men --- fortunately, they're related. Daniel Everson and his little boy, Nick, are a package deal, and Mallory suddenly can't imagine her future without them.
Mallory couldn't be more shocked when Daniel asks her to marry him, move to Texas, and form a family with him and motherless Nick. The idea is both thrilling and terrifying.
Mallory takes a leap of faith and begins a sweet, mishap-filled journey into ranch living, Moses Lake society, and a marriage that at times reminds her of the mail-order-bride stories. But despite the wild adventure of her new life, she discovers secrets and questions beneath her rosy new life. Can she find answers on Firefly Island, a little chunk of property just off the lakeshore, where mysterious lights glisten at night?