More like The Slitherers

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The Kraken WakesNovel
John Wyndhamstandalone novel1953
Alien invasion, about war, set in our world and 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, set in north america.
“Parasitical aliens attach themselves to human hosts and take over their bodies.”
from the catalogue
The Black CloudNovel
Fred Hoylestandalone novel1957
Hard science fiction, set in our world and british isles.
The Midwich CuckoosNovel
John Wyndhamstandalone novel1957
Eerie in tone, about parenthood, set in british isles and small town.
Forge of GodSeries
series2 books1987
completed
Science fiction, tense and dark in tone, about aliens and survival.
“Earth faces destruction when an inscrutable and overwhelming alien form of life attacks.”
from the catalogue
Start with The Forge of God →
Sea SiegeNovel
Andre Nortonstandalone novel1957
Post-apocalyptic, set in our world and latin america.
“On a bleak little island in the West Indies, Griff Gunston faces many questions.”
from the catalogue