A level 8 adventure for fifth-edition fantasy roleplaying games. An unnatural drought leads to an ancient desert palace claimed by the Cult of the Sun. Navigate shifting beams of concentrated sunlight, piece together the old king's celestial sequence, and reach the observatory before High Seer Vultus Verder completes his solar weapon. Includes three adventure hooks, an escape challenge through a burning oasis, and a seven-room desert temple. Navigate shifting sunbeams and breakable crystal walls, solve a celestial-sequence puzzle, and uncover evidence that can change the final battle. Vultus Verder has villain actions, and his unfinished solar weapon can be sabotaged during combat. Includes a 13-page PDF, a dungeon map, and the Mirror Shield magic item. Run it as a standalone temple assault or a continuation of The Ashen Phoenix. Part of Thirsty Tiger Tales by Infinite Initiative.