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See the S-Squad books by William Meikle in order, with quick summaries, monster-by-monster reading order, series background, and where to start.

Last updated: July 3, 2026

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S-Squad books in publication order

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19 books

1

Infestation

by William Meikle

2017

A British special forces team investigates a drifting Russian vessel in Arctic waters and finds bloody mayhem instead. Something hungry is breeding in the ice, and it is growing fast.

2

Operation Antarctica

by William Meikle

2018

S-Squad heads south to inspect a derelict Nazi base and wakes an old weapon under the ice. The dead are moving again, and they need new servants.

3

Operation: Amazon

by William Meikle

2018

S-Squad expects warmth and an easy assignment in Amazonia. Instead they find oppressive jungle heat, river dredging, occult history, and a very large snake problem.

4

Operation: Loch Ness

by William Meikle

2018

Home in Scotland should mean rest for S-Squad, but animal mutilations lead them straight to Loch Ness. Something in the dark water is feeding again.

5

Operation: Siberia

by William Meikle

2018

A strange zoo in the Russian tundra hides revived Ice Age beasts that are loose, hungry, and very hard to stop. S-Squad gets there just in time to regret it.

6

Operation Mongolia

by William Meikle

2019

Walking archaeologists out of the Gobi should be routine, until long-awaited rain brings the desert to life. Deathworms rise from the sand and turn the mission into a scramble for survival.

7

Operation Norway

by William Meikle

2019

A cleanup mission at an abandoned scientific base in a Norwegian fjord wakes something legendary in the rock. The squad soon finds itself running through snow toward civilization with death behind it.

8

Operation Syria

by William Meikle

2019

A desert mission drags S-Squad into ancient ruins, old secrets, and predators that should have stayed buried. Heat, isolation, and too many legs do the rest.

9

Operation Congo

by William Meikle

2020

S-Squad heads into the Congo and finds the jungle full of toothy problems from a much older world. Fast action, bad terrain, and raptor trouble carry the book.

10

Operation: North Sea

by William Meikle

2020

An offshore assignment in the North Sea turns into another monster emergency for S-Squad. Cold water, cramped spaces, and something predatory below make a bad mix.

11

Operation London

by William Meikle

2021

S-Squad gets dragged into the London underground, where the city tunnels hide a spreading menace. Tight spaces and urban panic make this one especially claustrophobic.

12

Operation: Sahara

by William Meikle

2021

The Sahara gives S-Squad heat, distance, and another beast problem that wants human flesh. In the open desert, nowhere feels safe for long.

13

Operation: Yukon

by William Meikle

2021

A distress call leads S-Squad into the Yukon, a winter storm, and a town already under siege. The research station in the hills holds the real reason the forest is howling.

14

Operation Orkney

by William Meikle

2022

Orkney's old stories stop feeling like stories when S-Squad arrives. Sea folklore, island weather, and something not entirely human make the assignment go bad fast.

15

Operation: Patagonia

by William Meikle

2022

A remote mission in Patagonia gives S-Squad bad weather, isolation, and another oversized problem with teeth. The landscape is as dangerous as the creature.

16

Operation North Pole

by William Meikle

2023

At a research station on the North Pole, S-Squad finds white bears, Arctic dark, and a threat bigger than one routine rescue should ever become.

17

Operation Yukatan

by William Meikle

2024

A Yucatan mission turns into another cryptid firefight for S-Squad, with old ruins, bad terrain, and the usual problem of being badly outnumbered.

18

Operation Below

by William Meikle

2025

Wiggins gets what should be an easy consultancy job on the Austria-Germany border, then ends up leading the squad underground. Something red in tooth and claw is waiting below.

19

Operation Fenland

by William Meikle

2025

The Fens give S-Squad marsh, isolation, and a run-in with one of Britain's darker legends. Thin ground and old fear do plenty of the work.

S-Squad books in chronological order

  1. Book cover for "Infestation"

    Infestation

    by William Meikle

    2017S-Squad, Book 1
  2. Book cover for "Operation Antarctica"

    Operation Antarctica

    by William Meikle

    2018S-Squad, Book 2
  3. Book cover for "Operation: Siberia"

    Operation: Siberia

    by William Meikle

    2018S-Squad, Book 3
  4. Book cover for "Operation: Amazon"

    Operation: Amazon

    by William Meikle

    2018S-Squad, Book 4
  5. Book cover for "Operation: Loch Ness"

    Operation: Loch Ness

    by William Meikle

    2018S-Squad, Book 5
  6. Book cover for "Operation Syria"

    Operation Syria

    by William Meikle

    2019S-Squad, Book 6
  7. Book cover for "Operation Norway"

    Operation Norway

    by William Meikle

    2019S-Squad, Book 7
  8. Book cover for "Operation Mongolia"

    Operation Mongolia

    by William Meikle

    2019S-Squad, Book 8
  9. Book cover for "Operation Congo"

    Operation Congo

    by William Meikle

    2020S-Squad, Book 9
  10. Book cover for "Operation: North Sea"

    Operation: North Sea

    by William Meikle

    2020S-Squad, Book 10
  11. Book cover for "Operation: Yukon"

    Operation: Yukon

    by William Meikle

    2021S-Squad, Book 11
  12. Book cover for "Operation: Sahara"

    Operation: Sahara

    by William Meikle

    2021S-Squad, Book 12
  13. Book cover for "Operation London"

    Operation London

    by William Meikle

    2021S-Squad, Book 13
  14. Book cover for "Operation: Patagonia"

    Operation: Patagonia

    by William Meikle

    2022S-Squad, Book 14
  15. Book cover for "Operation Orkney"

    Operation Orkney

    by William Meikle

    2022S-Squad, Book 15
  16. Book cover for "Operation North Pole"

    Operation North Pole

    by William Meikle

    2023S-Squad, Book 16
  17. Book cover for "Operation Yukatan"

    Operation Yukatan

    by William Meikle

    2024S-Squad, Book 17
  18. Book cover for "Operation Below"

    Operation Below

    by William Meikle

    2025S-Squad, Book 18
  19. Book cover for "Operation Fenland"

    Operation Fenland

    by William Meikle

    2025S-Squad, Book 19

Series background & context

S-Squad is William Meikle's monster-fighting military horror series, and it knows exactly what it wants to be. A team of hard-used Scottish special forces soldiers gets sent around the world to deal with things that should not exist, or at least should not still be alive, breeding, mutating, or eating people. The result is fast, loud, funny in places, and usually covered in mud, blood, ice, or all three.

The big beasties are the point.

Early on the series centers on Captain John Banks and the battered survivors of one mission rolling into the next. Later books lean more heavily on Sergeant Wiggins, Wiggo, whose mix of competence, bad luck, and refusal to quit helps hold the whole mad enterprise together. The squad's chemistry is a huge part of the appeal. They swear, panic, argue, improvise, and keep moving because standing still is usually how you get eaten.

Each book throws the team into a new location and a new cryptid or creature-feature nightmare. Infestation starts with a brutal Arctic mission. From there the squad runs into undead war secrets in Operation Antarctica, revived Ice Age animals in Operation: Siberia, giant snakes in Operation: Amazon, a lethal Loch Ness problem, desert deathworms, offshore terrors, underground predators, and all sorts of things with too many teeth. The settings matter as much as the monsters. Ice, jungle, desert, fjord, fen, city tunnels, they all change how the fight works.

What keeps the series from feeling repetitive is that Meikle genuinely enjoys both halves of the formula. He likes the monster side, clearly, but he also likes the mission structure, the military banter, the logistics, and the way each environment creates a different kind of pressure. These are not sprawling epics. They are lean action-horror books built to get in, hit hard, and get out.

Read them in order if you can, because the team takes losses, promotions happen, and the camaraderie builds over time. Still, every entry has its own local menace, so it is easy enough to test the waters with one and see if the mix works for you.

If you want creature features with guns, grit, Scottish voices, and almost no patience for standing around while the monster gets organized, S-Squad delivers exactly that.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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