“Give yourself time to read them because once you begin, you won't be able to stop!” — Holly Newton, Meridian Magazine“Move over Edward; Dante is bound to eclipse you!” — Emily Watts, bestselling authorIn a time when copycats abound, Mangum has created a unique story with interesting characters and an intriguing plot. And because “Hourglass” centers on relationships, fantastical elements feel believable rather than, well, fantastical. — Deseret NewsHis past. Her future. Can love bring them together in time?Abby's senior year of high school is textbook perfect: She has a handsome and attentive boyfriend, good friends, good grades, and plans to attend college next year. But when she meets Dante Alexander, a foreign-exchange student from Italy, her life suddenly takes a different turn. He's mysterious, and interesting, and unlike anyone she's ever met before. Abby can't deny the growing attraction she feels for him. Nor can she deny the unusual things that seem to happen when Dante is around. Time behaves differently when they are together — traveling too fast or too slow or sometimes seeming to stop altogether. When the band Zero Hour performs at the local hangout, Abby realizes that there's something dangerous about the lead singer, Zo, and his band mates, Tony and V. Oddly, the three of them are also from Italy and have a strange relationship to Dante. They also hold a bizarre influence over their audience when performing. And Abby's best friend, Valerie, is caught in their snare.Dante tells Abby the truth of his past: he once worked for Leonardo Da Vinci, helping to design and build a time machine. When Dante was falsely implicated as a traitor to his country, he was sent through the machine more than five hundred years into the future as punishment.As the past and the present collide, Abby learns that she holds a special power over the flow of time itself. She and Dante must stop Zo from opening the time machine's door and endangering everyone's future. More than one life is at stake and Abby's choice could change everything.“The Hourglass Door has everything: a heroine who is genuine, strong, and lovable; an interesting and compelling love story; gorgeous language, fast pacing, and an intricate and exciting plot. For readers who have been waiting for the next book to sweep them off their feet — this is it.” — Allyson Braithwaite Condie, author of the Yearbook trilogy