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 (expected October 19, 2010) 4. * The Last Dark (expected 2013) It is a sequel to The Chronicles of Thomas Covenant the Unbeliever and The Second Chronicles of Thomas Covenant