The brothers spent months designing the Ages comprising the game, which were influenced by earlier whimsical "worlds" Cyan had made for children's games. The game's name, as well as the overall solitary and mysterious atmosphere of the island, was inspired by the book "The Mysterious Island" by Jules Verne. Robyn's unfinished novel, "Dunnyhut", influenced aspects of "Myst"s story, which was developed bit by bit as the brothers conceptualized the various worlds. As development progressed, the Millers realized that they would need to have even more story and history than would be revealed in the game itself. Realizing that fans would enjoy getting a deeper look at the story not in the games, the Millers produced a rough draft of what would become a novel, "Myst: The Book of Atrus".