The Dying Earth, The Eyes of the Overworld, Cugel's Saga, and Rhialto the Marvellous a far-future Earth is under a giant red sun that is about to go out forever.
The Dying Earth is under a giant red sun. This giant red sun is about to go out forever. The Eyes of the Overworld are the Dying Earth. Rhialto the Marvellous a far-future Earth are the Dying Earth. Cugel's Saga is the Overworld.