- Series: Tarzan's Africa / Opar / Khokarsa Series Record # 4986
- Sub-series of: Tarzan Universe
- Series Tags: historical fantasy (1), Atlantis remnant (1), science fiction (1), time travel (1)
- Tarzan's Africa / Opar / Khokarsa
- 1 Hadon of Ancient Opar (1974) by Philip José Farmer
- 2 Flight to Opar (1976) by Philip José Farmer
- 3 The Song of Kwasin (2012) by Christopher Paul Carey and Philip José Farmer
- 4 Hadon, King of Opar (2015) [SF] by Christopher Paul Carey
- 5 Blood of Ancient Opar (2016) [SF] by Christopher Paul Carey
- Time's Last Gift (1972) by Philip José Farmer
- A Kick in the Side (2010) [SF] by Christopher Paul Carey
- Kwasin and the Bear God (2011) [SF] by Christopher Paul Carey and Philip José Farmer
- Gods of Opar: Tales of Lost Khokarsa (2012) [O/1,2,3] by Christopher Paul Carey and Philip José Farmer
- Exiles of Kho (2012) [SF] by Christopher Paul Carey