More like Darwath Trilogy

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NarniaUniverse
universe38 books1950
“Once there is a wardrobe at the back of a spare room, and behind the fur coats the wood gives way to snow, and a lamp-post burns alone among the trees.”
from the catalogue
Start with The Lion, the Witch and the Wardrobe →
includes Narnia, Narnia Solo Adventures
Tolkien's legendariumUniverse
universe163 books1923
Fantasy, set in secondary world.
“Before the seas were bent and the mountains raised, there was Music — and from that Music came Arda, and in the west of Middle-earth the long defeat and stubborn hope of those who dwell there.”
from the catalogue
Start with The Fellowship of the Ring →
includes The Hobbit, The Lord of the Rings, The Fall of Gondolin, The History of Middle Earth, The History of the Lord of the Rings
Thomas Covenant the UnbelieverSeries
series11 books1977
Epic fantasy and fantasy, dark in tone, about quests, set in secondary world.
Start with Lord Foul's Bane →
The Questing RoadNovel
Lyn McConchiestandalone novel2010
About war.
“With their warrior niece, Ashara, they follow its trail through a dimensional gate, little realizing their simple quest will become a desperate fight for survival in the middle of an all-out war.”
from the catalogue
SpiderlightNovel
Adrian Tchaikovskystandalone novel2016
About prophecy.
The Warrior Who Carried LifeNovel
Geoff Rymanstandalone novel1985
About revenge.
“Barbaric invaders had slaughtered her mother, crippled her father and brother, and left her scarred and barren.”
from the catalogue