A list of fiction featuring Nova/Spirit Cats.
Novels about Nova cats:
Path of Glory by Randal N.Bills (Zane Nova Cat)
Heretic Faith by Randal N. Bills (Kisho Nova Cat)
Major involvement:
D.R.T., by James D. Long. Nova Cat as main antogonist.
Impetus of War, by Blaine Lee Pardoe. One of the PoV (future Nova Cat Khan Santin West)
Forever Faithful, by Blaine Lee Pardoe.
Minor involvement:
Grave Covenant (Twilight of the Clans #2)
Sword of Sedition, by Loren L. Coleman (Kisho Nova Cat in few chapters)
Fortress Republic, by Loren L. Coleman. (Kisho Nova Cat in few chapters)
Spirit Cats:
Target of Opportunity, by Blaine Lee Pardoe. One of the PoV (Star captain Cox Devalis)
Pandora's Gambit, by Randall N. Bills. One of the main PoV (Rikkard Nova Cat )
To Ride the Chimera, by Kevin Killiany.-again Rikkard
Hunting season by Philip A.Lee - minor involvement (one of the chapter about battle on Marik in 3147)
Short stories:
Whispering Death (2011) by Philip A. Lee - BattleCorpse story
Hunter or Hunted, by Randall N. Bills (fourth BattleCorps anthology, Fire for Effect, in 2013)
Shadow of Death by Randall N. Bills ( Battle of Tukayyid series)
Others:
Wolf Pack, by Robert N. Charrette, - abtakha elemental Elson Nova Cat as main antogonist
I might have missed something. Please correct me if you noticed this