"Split Infinity" by Thalia Kalkipsakis is an engaging young adult science fiction novel that follows the story of Alex, a teenager who discovers she has the ability to travel between parallel universes. Struggling with the recent loss of her mother and feeling disconnected from her father and friends, Alex finds solace in exploring these alternate realities. As Alex delves deeper into the mysteries of the multiverse, she uncovers shocking secrets about her own identity and the true nature of the world around her. Along the way, she encounters versions of herself and her loved ones that are both familiar and startlingly different, forcing her to confront difficult truths and make impossible choices. With each leap between dimensions, Alex must navigate new dangers and challenges, including ruthless enemies who seek to exploit her powers for their own gain. As the boundaries between the different realities blur, Alex must rely on her wits, courage, and the support of unexpected allies to protect herself and those she cares about. "Split Infinity" is a thrilling tale of adventure, discovery, and self-discovery, exploring themes of identity, family, and the power of choice. Thalia Kalkipsakis skillfully blends science fiction elements with relatable coming-of-age struggles, creating a