Katie Slivensky is the critically acclaimed author of middle grade sci-fi adventures, The Countdown Conspiracy and The Seismic Seven (HarperCollins Childrens), as well as an upcoming picture book based on natural history, THIS WOLF WAS DIFFERENT with illustrator Hannah Salyer (Beach Lane Books, 2024), and a middle grade non-fiction book that focuses on physics, SMALLER: The Search for Subatomic Particles (Algonquin Young Readers, 2024). She is a professional science educator and enthusiast who has worked in zoos and museums since age 11. Her love of learning has resulted in a lifetime of adventures, including helping separate fighting rhinos, falling down a cliff in search of fossils, flying an astronaut through the solar system (the astronaut was real, the solar system was a simulation), nursing a stranded baby mouse back to health, creating million-volt lightning bolts while standing just an inch away, and handling feisty alligators. She is a firm believer that science and adventure are for everyone, and that kids have a lot to teach adults about how to save the world. Katie grew up in Michigan and currently lives just outside Boston with her family, including her dear cat Darwin. She has science degrees from the University of Michigan and Stony Brook University. She is represented by Ammi-Joan Paquette of the Erin Murphy Literary Agency.