Discworld | Point groups in three dimensions | Hofstede's cultural dimensions theory | Dimensions in Time | Death (Discworld) | witches (Discworld) | Welcome to the Discworld | Torn Between Dimensions | The Folklore of Discworld | Discworld Noir | Development Dimensions International | Albert (Discworld) |
In the Discworld story the wizards learn that, once again, the history of Roundworld has changed, resulting in humans failing to leave Earth before the Extinction Level Event shown in the earlier books.