|The information in this article comes from Marvels, warlord of mars and is not written by Edgar Rice Burroughs.|
T'ralla was an alien reptile stranded in the city of Zeere on Barsoom. How this creature arrived on the planet is a mystery, but the inhabitants of the city were enthralled by its powers, as the creature fed on them by leeching their life energies. The creature, when it met John Carter, hoped to absorb his energies and return home. John Carter slayed the beast, which freed the citizens of Zeere from the creatures control, who then destroyed the statues of the creature that dotted their city.
- In John Carters dialogue he calls T'ralla a "sickening monstrosity from beyond the farthest star", the writer apparently including this as a nod to Edgar Rice Burroughs book Beyond the Farthest Star.