This book by Erin Entrada Kelly seamlessly blends themes of family, friendship, trust, and forgiveness with the excitement of science fiction and time travel. Set in August 1999, the story follows 12-year-old Michael Rosario, a Filipino American boy living in Red Knot, Delaware, as he navigates the challenges of his everyday life while also grappling with the looming Y2K crisis and his overwhelming crush on his 15-year-old babysitter, Gibby. Kelly’s writing shines through her well-crafted characters, particularly the endearing and relatable protagonist, Michael. Readers will empathize with his anxieties, insecurities, and desire to protect his hardworking single mother. The arrival of Ridge, a mysterious and confident teenage time traveler from the year 2199, adds an exciting and thought-provoking element to the story. As Michael and Gibby help Ridge acclimate to life in 1999, they learn valuable lessons about living in the present moment and not getting too caught up in worries about the future. The author’s attention to detail in capturing the essence of the late 1990s is commendable, from the pop culture references to the prevalent fears surrounding Y2K. The alternating chapters set in 2199 provide intriguing glimpses into the future and add depth to the time travel aspect of the story. One of the book’s greatest strengths is its exploration of meaningful themes that resonate with young readers. Through Michael’s journey, Kelly touches on topics such as anxiety, grief, bullying, and the importance of kindness and empathy. The story’s central message about focusing on the present moment and not letting fears about the future consume you is both timely and timeless. The end of the story ties together the various plot threads and character arcs in a way that feels both surprising and inevitable. The epilogue provides a heartwarming glimpse into the long-lasting impact of the characters’ actions and choices, emphasizing the idea that even small acts of kindness can have far-reaching consequences. The novel is a warmhearted blend of nostalgia and futurism. | 