The Reality Dysfunction

The Reality Dysfunction is a science fiction novel by British writer Peter F. Hamilton, the first book in The Night's Dawn Trilogy. It is followed by The Neutronium Alchemist and The Naked God. It was first published in the United Kingdom by Macmillan Publishers on 26 January 1996. The first US edition, which was broken into two volumes, Emergence and Expansion (the UK paperback is not), followed in July and August 1997 from Time Warner Books. The second US edition, published by Orbit Books in October 2008, is published in a single volume.

In some countries, the paperback editions were split into two (Germany and the United States), three (France) or four volumes (Italy and Portugal) per book. Usually the first volume is a translation of "Emergence".