Eleven students and two teachers want to relive the year before the tragedy that killed them and try to change what happened. Right after they die, they arrive in Sojourn, a natural satellite located in a transitional space between their homes in Green Hills, Maine, and the First Heaven. If they stay in Sojourn, their bodies will vanish gradually, but they will reclaim them for special Earth-bound missions. While they are in Sojourn, five embodied...