Tia Calloway is a loner, preferring solitude and romance novels to human interaction. But her life is about to change profoundly when she wakes up one day and finds herself on an alien spaceship. The Equestrians are a dying breed of tiger aliens who've come to Earth in a last-ditch effort to breed with human women. They request one thing from Tia: Stay with them for seven days. Tia knows she should say no, but the allure of Ekale-the dangerously tall, alluring creature who takes up all the space and air in the room-can't be denied. A night of passion with Ekale changes everything, and Tia soon discovers that she is carrying his child. Dr. Diane Smith is a brilliant government scientist and physician with her own agenda: She wants fame, fortune...and she wants to be the Equestrian queen, but Tia poses a serious threat to her plans. Diane is willing to do anything-even commit murder-to get Tia away from the Equestrians before she gives birth to their future and kills Diane's legacy.