More like When the World Screamed

anchored on:science fictionearly 20th centuryexpeditionsunderground & cavesadventurous

but

Narrow

CavorSeries
series2 books1901
About space exploration and aliens, set in the moon.
“H. G. Wells's 1901 novel The First Men in the Moon is narrated by the businessman Bedford, who joins the reclusive scientist Cavor after Cavor invents cavorite, a gravity-blocking substance that carries the two men to the Moon.”
from the catalogue
Start with The First Men in the Moon →
Walter GoodwinSeries
series3 books1918
completed
Fantasy and science fantasy, eerie in tone, set in lost world.
“The two books follow Goodwin from one uncanny expedition to the next rather than forming a tightly plotted continuing saga.”
from the catalogue
Start with The Moon Pool →
The Lotus CavesNovel
John Christopherstandalone novel1969
About aliens and space exploration, set in the moon and near future.
“Two boys living in a moon colony find an unrestricted buggy, allowing them to travel beyond their usual boundary.”
from the catalogue
DarwiniaNovel
Robert Charles Wilsonstandalone novel1998
Alternate history, about faith and religion, set in alternate earth and jungle.
“From the front flap of the Tor first edition: In 1912, history was changed by the Miracle, when the old world of Europe was replaced by Darwinia, a strange land of nightmarish jungle and antediluvian monsters.”
from the catalogue
In Caverns BelowNovel
Stanton A. Coblentzstandalone novel1935
Science fiction, adventurous in tone, about expeditions, set in early 20th century and underground & caves.
The Maracot DeepNovel
Arthur Conan Doylestandalone novel1929
Adventure, set in underwater and lost world.