More like Harriet the Invincible

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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 History of Middle Earth, The Fall of Gondolin, The History of the Lord of the Rings
NarniaUniverse
universe38 books1950
Portal fantasy.
“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
The School for Good and EvilSeries
series8 books2013
Adventurous in tone, about magic schools.
“After their fortunes are reversed, Agatha is taken to the School for Good while Sophie is taken to the School for Evil, their friendship is put to the test.”
from the catalogue
Start with The School for Good and Evil →
World of Septimus HeapSeries
series12 books2005
Adventurous in tone, about wizards.
Start with Magyk →
DiscworldUniverse
universe84 books1983
Fantasy, funny in tone, set in secondary world.
“Death speaks IN SMALL CAPITALS and rides a horse called Binky.”
from the catalogue
Start with Guards! Guards! →
includes Discworld omnibuses, Discworld - Young Sam's books, Discworld Reference, Discworld Plays, Discworld Screenplays
Tales of the Frog PrincessSeries
series9 books2002
Lighthearted in tone.
Start with The Frog Princess →