Orphans of the Helix

"Orphans of the Helix" is a 46-page science fiction short story by American writer Dan Simmons, set in his Hyperion Cantos fictional universe (one of three, the others being "Remembering Siri", a story which is also a chapter of Hyperion, and "The Death of a Centaur", which deals with an early and allegorical version of either The Fall of Hyperion or Endymion). It was first published in the anthology Far Horizons in 1999. "Orphans of the Helix" won the 2000 Locus Award for best novella.