Project Mariner is a story of survival and triumph through personal tragedy and familial deception as generational legacies within the close-knit climbing community are debated and fought over, even upon the very slopes of Olympus Mons itself. It is the biggest mountaineering prize up for grabs in nearly two centuries, and it has reawakened one of the oldest rivalries in all of alpinism. Artfully weaving together references to the long-standing debate as to whether or not George Mallory ever made it to the summit of Everest in 1924, Project Mariner details a gripping extraplanetary adventure filled with devious twists and turns-of-fate as the question of which family will claim the first summit of the tallest mountain in the Solar System hangs in the balance.