sentences:  Indeed, editor Jean E. Karl, who had established the children's and science fiction imprints at Atheneum Books,
  hoped to attract more female readers to science fiction and solicited "a story for young women in a different part of Pern".McCaffrey delivered "Dragonsong" and they contracted for a sequel before it was out.The three books were subtitled "Volume One of The Harper Hall Trilogy", "Volume Two ...", and "Volume Three ..." on the front covers of the first Bantam Spectra edition, early 1986.