Double Phoenix is an anthology

Anthology

An anthology is a collection of literary works chosen by the compiler. It may be a collection of poems, short stories, plays, songs, or excerpts...

 of two short fantasy

Fantasy

Fantasy is a genre of fiction that commonly uses magic and other supernatural phenomena as a primary element of plot, theme, or setting. Many works within the genre take place in imaginary worlds where magic is common...

 novels by Edmund Cooper

Edmund Cooper

Edmund Cooper was an English poet and prolific writer of speculative fiction, romances, technical essays, several detective stories, and a children's book. These were published under his own name and several pen names...

 and Roger Lancelyn Green, edited by Lin Carter

Lin Carter

Linwood Vrooman Carter was an American author of science fiction and fantasy, as well as an editor and critic. He usually wrote as Lin Carter; known pseudonyms include H. P. Lowcraft and Grail Undwin.-Life:Carter was born in St. Petersburg, Florida...

. It was first published in paperback by Ballantine Books

Ballantine Books

Ballantine Books is a major book publisher located in the United States, founded in 1952 by Ian Ballantine with his wife, Betty Ballantine. It was acquired by Random House in 1973, which in turn was acquired by Bertelsmann AG in 1998 and remains part of that company today. Ballantine's logo is a...

 in November 1971 as the thirty-seventh volume of its celebrated Ballantine Adult Fantasy series

Ballantine Adult Fantasy series

The Ballantine Adult Fantasy series was an imprint of Ballantine Books. Launched in 1969 , the series reissued a number of works of fantasy literature, which were out of print or dispersed in back issues of pulp magazines , in cheap paperback form—including works...

. The book includes an introduction and notes by Carter.

Contents

• "Introduction" (Lin Carter
  Lin Carter
  Linwood Vrooman Carter was an American author of science fiction and fantasy, as well as an editor and critic. He usually wrote as Lin Carter; known pseudonyms include H. P. Lowcraft and Grail Undwin.-Life:Carter was born in St. Petersburg, Florida...
  
  )
• "From the World's End" (Roger Lancelyn Green)
• "The Firebird" (Edmund Cooper
  Edmund Cooper
  Edmund Cooper was an English poet and prolific writer of speculative fiction, romances, technical essays, several detective stories, and a children's book. These were published under his own name and several pen names...
  
  )

From the World's End

"A Strange tale of wonders, of figures and fancies and tortuous dreams, of probable nightmares, and possible facts, of mists in the night, of glorious discovery-a strange tale of loving and giving delight."

The Firebird

"The tale of a journey, a journey through life, a tale full of marvels, of terror and strife: a tale of belief, and of faith, and of courage, of clarity, beauty and joy beyond life."