Pierson's puppeteers, strange, three-legged, two-headed aliens, have discovered an immense structure in a hitherto unexplored part of the universe.
Frightened of meeting the builders of such a structure, the puppeteers set about assembling a team consisting of two humans, a puppeteer and a kzin, an alien not unlike an eight-foot-tall, red-furred cat, to explore it.
The artefact is a vast circular ribbon of matter, some 180 million miles across, with a sun at its centre - the Ringworld.
But the expedition goes disastrously wrong when the ship crashlands and its motley crew faces a trek across thousands of miles of the Ringworld's surface.
- Format: Paperback
- Pages: 288 pages
- Publisher: Orion Publishing Co
- Publication Date: 09/06/2005
- Category: Science fiction
- ISBN: 9780575077027