#1 of 5 in The Dark Is Rising

#5 of 12 in Future History or "Heinlein Timeline"

Heinlein's Juveniles

#1 of 7 in Bill, the Galactic Hero

#1 of 3 in Moties

#2 of 4 in Rama

#2 of 4 in Space Odyssey

#3 of 3 in Involuntary trilogy

#2 of 2 in Crisis on Conshelf Ten

#2 of 5 in Dragonlance: Chronicles

#2 of 4 in The Darksword

#3 of 3 in Darkangel Trilogy

1 Known Space

#2 of 3 in Moties

#1 of 4 in The World As Myth

#1 of 1 in Star Stormers

#1 of 5 in Ringworld

#1 of 6 in Earthsea Cycle

#1-3 of 3 in Deathworld

#3 of 3 in Sprawl

Middle-earth Legendarium