More like Three by Heinlein

anchored on:science fictionmid 20th centuryfantasyaliensour worldtense

but

Narrow

The Black CloudNovel
Fred Hoylestandalone novel1957
Hard science fiction, set in british isles.
The Kraken WakesNovel
John Wyndhamstandalone novel1953
Alien invasion, dark in tone, about war, set in at sea.
“Earth's life is disrupted by the attacks of extraterrestrials whose war machines, emerging from the depths of the oceans, seem indestructible.”
from the catalogue
The Puppet MastersNovel
Robert A. Heinleinstandalone novel1951
Alien invasion.
“Parasitical aliens attach themselves to human hosts and take over their bodies.”
from the catalogue
FootfallNovel
Larry Niven & Jerry Pournellestandalone novel1985
Alien invasion and first contact, about war, set in contemporary.
“When aliens travel to Earth from Alpha Centauri, differences between alien and human psychology result in an unprovoked invasion, and the resulting resistance results in the aliens' use of a devastating weapon.”
from the catalogue
Sea SiegeNovel
Andre Nortonstandalone novel1957
Post-apocalyptic, set in latin america and islands.
“On a bleak little island in the West Indies, Griff Gunston faces many questions.”
from the catalogue
Three to ConquerNovel
Eric Frank Russellstandalone novel1956
About psychic powers.