"The storm-stuff is not matter as we know it, and beyond Immortal control," the Hierarch sighs. "I fear we are doomed." It appeared only a few weeks ago - a swirling gray mass of incalculable size. And in its center, an eye. A humanoid eye. Now the storm threatens the very era of Immortal rule. The growing maelstrom emits a message to the Hierarchs. But what does it mean? Can it help save this realm of existence? Is there time to save this realm? The first Immortal adventure pits your party against the multiverse in a desperate struggle to find the essence of life. This adventure is nothing like you've ever played before. TSR 9171

Under the Unmoving Sun is a one-shot adventure for the game Fire Burns Low. Player characters become strangers in a strange land when they are abducted from their homes and wake in the dark. What follows is a mystery that unfolds as they explore their new home. Before long, it becomes clear that nothing here is what it seems. Discover the nature of this place, and the puppet masters behind the scenes who keep you trapped there. This one-shot adventure was designed for the game Fire Burns Low but includes an adaptation for Dungeons & Dragons 5e with stat blocks for NPCs and monsters. It plays over 3-4 sessions. The file includes an appendix of monsters adapted for D&D 5e, a map, a brief, and a quick reference.