The Stephen R. Donaldson Universe Wiki

The last series of books is a tetralogy still under development and comprises:

  1. The Runes of the Earth – Putnam (US), Orion (UK), October 2004.
  2. Fatal Revenant – Putnam (US) October 9, 2007; Orion (UK) October 18, 2007.
  3. Against All Things Ending (October 19, 2010)
  4. The Last Dark (October 2013)

It is a sequel to The Chronicles of Thomas Covenant the Unbeliever and The Second Chronicles of Thomas Covenant