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Leitha was a telepath saved from being burned as a witch in The Redemption of Althalus. She was first met by Althalus and Bheid, when they traveled to save her from being burned because of her telepathy.

Leitha disguised her insecurities under a tough yet fun persona. Being a telepath, Leitha could hear the thoughts of everyone around her. She described her ability as both a curse and a gift.

Leitha's word/task on the Knife was to listen. Leitha was the only character who was able to read more than her designated word on the Knife. Leitha ultimately erased Koman's telepathic abilities, defeating him, and ruining his mind.

At the end of the story, she is married to Bheid by Dweia.

“Where’s your sense of adventure, Bheid?” Leitha asked him. “Permanence is so boring sometimes, isn’t it? Wouldn’t it be funner to live in a world Gher can change any time he wants to?”
The Redemption of Althalus