A multilayered international thrill ride at breakneck pace, reminiscent of The Rule of Four The Arctic, 1897: Nils Strindberg crashes his hydrogen balloon during the mysterious Andr?e Expedition to the North Pole. Germany, 1942: Gruesome and inexplicable experiments are performed on concentration camp prisoners. Sweden, present-day: Cave diver Erik Hall finds a dead body wearing an ancient ankh, buried deep in an abandoned mine. Religious symbol expert...