Tarweeratum is the antagonist of the final duel at the Castle of the Prism (“Prism Keep”). The spelling of the name is uncertain.
Final duel
- He summoned two Hundun and fought for three hours against the companions, who were inspired and nearly possessed by Arian and raised to superhuman faculties. Meanwhile the cosmos, halted in a hiatus of time, watched without intervening.
- Arian halted the advance with the Rod of Infinity.
- He fell. In the round after his fall Jok-Sotot appeared and declared «Suyo» (“His”): the universe now passed to the companions.
- After the combat the Nexus Crystal was placed and Prism Keep was left radiating positive energy.
The duel closes the planar arc of Les Libertateurs.