One dying planet. Two worlds at war. Three teens fight for survival. In this race against time, three teens with powers that defy science take on a warring planet destroyed by climate change. But will they return home? Trapped in an epic time/space confrontation, the trio battle destiny. Alliances are betrayed. Unlikely friendships are forged. And young love flourishes in a race against impossible odds in this thrilling young adult sci-fi fantasy adventure. When Parker Kittredge, a quirky science student from New York City, is lured to her terrace by a frisky hummingbird, she slips and plunges 18 stories to the street. She awakens in Spyridon, a planet destroyed by climate change and locked in a civil war. Parker quickly discovers she is not alone. Two other teens have also been kidnapped and they must join forces to save the planet if they have any chance to return to Earth. The teens' struggle for survival is fierce: murders, deceptions, power plays, love triangles, and magical fantasy elements make this a high-stakes, coming-of-age adventure pitted against a race with time. The Virago Fantasy series are for everyone interested in the thrill of an adventure and our planet's sustainability. The books are especially for teens and young adults interested in Science, Technology, Engineering, and Mathematics (STEM). Rich in vivid imagery, intrigue, and suspense, you'll find yourself laughing, crying, and cheering on Parker, Edison, and Henley in this fast-paced YA fantasy. Fans of The Hunger Games , Divergent , or Stranger Things who want to delve into a thrilling adventure will love this book! GOLD MEDAL WINNER - GLOBAL BOOK AWARDS, Teen & Young Adult Sci-Fi Fantasy One If by Carol B. Allen is an epic fantasy adventure rich in vivid imagery. The author describes events so clearly that it leaves graphic images in one's mind. In this book, there is a clear intention to inspire teenagers to be courageous and believe in their abilities to effect positive change in the world. Allen also portrays the pressure teenagers experience because they seek vocations that are contrary to what people expect of them. Parker and the other two teenagers, Henley and Edison, are compelling characters who I am sure will inspire youths through their innovations, determination, and charisma. I love everything about this book! The world-building ability of the author is commendable. From the Virago trees of the Upperworld to the dark portals leading to the Underworld of Spyridon, the author's creativity shines through. This book made me laugh, I got emotional, and I feared greatly for the safety of Parker, my favorite character. I am recommending this book to lovers of fantasy adventures, especially young adults who like courageous female characters. - Online Book Club.Org Official Review, 4 out of 4 stars I found One If to be an interesting, fast-paced premise. The world-building was compelling and the environmental themes are timely. Well done! -Bianca Marais, best-selling author of Hum If You Don't Know the Words I just finished reading One If in my sunny reading corner. A breathtaking ending, just sprouting a sequel! Thank you for this inspiring adventure. Young people need heroes who model selfless, courageous behavior (like Parker) and drive motivation for others to do work for the betterment of humanity. You've done a tremendous service. -Mary K. and Friends of the Hills Book Club As a career librarian who has researched and selected books for public school libraries and large library systems, I have learned at the heart of good writing is an author who has something to say that people need to know. I highly recommend OneIf as a well-written, fast-paced YA Fantasy with a relevant message. One If will inspire girls to embrace STEM--science, technology, engineering, and math--an important mission. The book also widens the lens on the impact of climate change, something we all need to know more about. The bonus--it's a great read that's great fun! -Ilene Slutsky , Librarian Media Specialist North Bellmore, NY and Wantagh NY School District Librarian I just finished the book. It is incredible!! I was so wrapped up in it and invested in all the characters. Each of them are well developed and play an integral part. I need to know do they save the planet? I can totally relate to Henley and her story as it was always the pressure to be a doctor, lawyer, or engineer in my family. I love how each character is so strong but also has a vulnerable aspect to them. I absolutely loved it. -Dr. G. Liu A portion of the proceeds from the sales of the Virago Fantasy series will be donated to causes that support climate change and the STEM initiatives. Carol B Allen  is a best-selling author, award-winning creative professional, and the Gold Medal Winner of the NYC Book Awards. She has held leadership roles in firms that believe in strengthening community. She supports opportunities to enhance young women's interest in the