This title, first published in 1988, is a part of the Dragonriders of Pern book series. This sub-series contains various drafts with hand annotations, alternate drafts and discarded versions, the final draft with editor's corrections, corrected galley proofs with hand annotations, galley proofs with editor’s notes, various versions of time scale for the book, a list of dragon names, a list of characters with professions and places, a story line, a summary of chapter contents, a Treadfall sequence, geologic history of Ista, pencil drawings, lists of provinces and places, handwritten notes, hand drawn maps of Pern and Ista, research material, and correspondence related to the title.