The narrator awakens on Myst Island with no memory. They explore various strange locations and ages, finding clues in red and blue books. By solving puzzles, the narrator retrieves pages from each age for the men in the books, Sirrus and Achenar. Sirrus promises a reward for the last red page, while Achenar warns against it and offers a reward for the last blue page instead. The narrator must now decide whether to trust Sirrus or Achenar.