Veltreena
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Veltreena was a Gandoran princess. She was Quendril's daughter and Zaadur's sister.
Quendrill experimented on her thus creating the perfect Gandoran. But unlike Zaadur, she still needed the life drink.
After Zaadur captured Quendrill, Veltreena came to Zaadur's throne room at her request. Zaadur offered to play a game with her, the game being to take an overdose of the life drink. She took the overdose, which caused her to age to death.
Veltreena's death angered Risor, which caused him to blow up Zaadur's rocket. (AUDIO: Lords of the Red Planet)