- Author: Rachel Cosgrove Payes Author Record # 1736
- Legal Name: Payes, Rachel Ruth Cosgrove
- Birthplace: Westernport, Maryland, USA
- Birthdate: 11 December 1922
- Deathdate: 10 October 1998
- Language: English
- Webpages: historicalromancewriters.com, IMDB, sf-encyclopedia.com, Wikipedia-EN
- Used These Alternate Names: E. L. Arch, Rachel R. Cosgrove, Rachel Cosgrove, Rachel Payes, Rachel C. Payes
- Author Tags: fantasy (2), young-adult fantasy (2), juvenile fantasy (2), juvenile sf (1)
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Novels
- Bridge to Yesterday (1963)
- Planet of Death (1964)
- The Deathstones (1964)
- The Double-Minded Man (1966)
- The First Immortals (1965)
- The Hidden Valley of Oz (1951)
- The Man with Three Eyes (1967)
- The Wicked Witch of Oz (1993)
- ... And the Power ... (1972)
- Alas, Poor Tidy Toidy Girl (1973)
- Come Take a Dip with Me in the Genetic Pool (1975)
- Deaf Listener (1973)
- Escape to the Suburbs (1978)
- Flee to the Mountains (1982)
- Grandma Was Never Like This (1973)
- Half Life (1973)
- Have You Been Converted? (1977)
- In His Own Image (1974)
- Mattie Harris, Galactic Spy (1974)
- Mother Calls But I Do Not Answer (1988)
- Percy and the Shrinking Violet (1995)
- Private Phone (1970)
- Rocket Trip to Oz (2000)
- Spots in Oz (1997)
- The Door (1964)
- The Executioner (1971)
- The Eyes of the Blind (1975)
- The Gorgons (1977)
- The Name of the Game (1975)
- The Spy Game (1966)
- The Vision (1988)
- Tower of Babble (1974)
- Acrostic Puzzle (1981)
- Afterword (The Hidden Valley of Oz) (1991)
- Angel Goop Cake Roll (1973)
- Letter (Magazine of Horror, November 1964) (1964)
- Letter to The SFWA Forum # 31, September 1973 (1976)
- Letter to The SFWA Forum #32, January 1974 (1974)
- Timetable for an Oz Book (1991)
- To the Children (1951)
- To the Children (The Wicked Witch of Oz) (1993)