Allan Hamilton started his working life as a janitor. He went on to become a Harvard-trained brain surgeon. He is a decorated Army veteran and served as a Guest Instructor at the Marine Corps Mountain Warfare Training Center and an expert on Arctic navigation and survival. Dr. Hamilton has led multiple expeditions into the Arctic and served as Commanding Officer of the 1986 U.S. Army Mt. McKinley Medical Research Expedition. His team spent six weeks encamped on Mt. McKinley at 16,000 feet above sea level conducting high-altitude medical research. He also served as Flight Surgeon and Chief Medical Officer for the U.S. Army Altitude Research Division and oversaw one of the world's largest high-altitude chambers. He is a member of the Western Division of the Professional Ski Instructors Association (PSIA). Dr. Hamilton holds four professorships at the University of Arizona in Neurosurgery, Radiation Oncology, Psychology, and Electrical & Computer Engineering. Dr. Hamilton has authored five non-fiction works that have won numerous literary awards. He is currently working on a seventh book on the human brain due in 2023. He was recognized with the Marquis Lifetime Achievement Award in 2015 and bestowed the highest academic accolade with the title of Regents Professor in 2019. Dr. Hamilton has been selected as "One of the Leading Intellects of the Twenty-First Century" and called "the prototype of the modern Renaissance individual." His writings have helped inspire educators, tech innovators, politicians, military strategists, designers, filmmakers, ecologists, and scientists around the world. As an undergraduate, the author studied creative writing under Rod Serling, the creator of the TV series "The Twilight Zone." Dr. Hamilton has worked as the senior medical consultant for the hit TV medical drama "Grey's Anatomy" for eighteen years. The author is also a world-renown horse-whisperer and trainer. He lives with his wife Jane in Tucson, Arizona, home to the southernmost ski resort in the Northern hemisphere, atop Mt. Lemmon at 9,171 feet above sea level. The couple lives alongside their extended family, including their wonderful children with their spouses, and beloved grandchildren.