Lyric Erskine was the daughter of planetary surveyor Merrit Erskine. She went to Death's Deal to find out why her father went missing six years ago. With the help of the Tenth Doctor she found out that her father had lost his memories but was protecting the planet. After he died she took his research and continued his work. (AUDIO: Death's Deal)

She later married OhOne and bore him a child Guy Taylor. (AUDIO: The Time Machine)

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