Reidar Müller is a Norwegian author of renowned adult and children’s books with a PhD in geology. His books What Became Norway (2014), The History of the Forest (2018), and Fire and Ice (2022) have made him a sought-after speaker. His 2020 children’s book Supervolcanoes and Giant Dinosaurs is about Norway's geological history, and his 2024 comic book Life is Dangerous is about the evolution of life. Life is Dangerous was nominated for the Brage Prize in the Nonfiction for Children and Young People category. It was also nominated for the Ministry of Culture's Children's and Youth Literature Prize in the Nonfiction category. He lives in Norway.Sigbjørn Lilleeng is an award-winning Norwegian illustrator and comic book artist. He studied at art school and earned a degree in illustration from Kristiania University in Oslo. He is known for works such as Generator (2012), Mellom planeter (2016), and Nagel (2018). In 2020, Sigbjørn illustrated the acclaimed book Supervolcanoes and Giant Dinosaurs by Reidar Müller, and he illustrates the series Portalpilotene by Stian Gulli. He is from Norway.