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Thrillers and Mystery

Best Mystery Books of the 21st Century (2026): 7 Compared

Best mystery books of the 21st century: 7 picks ranked, from award winners to kids mysteries. What stands out.

Best Mystery Books of the 21st Century (2026): 7 Compared

At a glance

Top picks

As an Amazon Associate I earn from qualifying purchases. How we score

The best mystery books of the 21st century span literary fiction, manga epics and kids adventures. We ranked 7 from the listings: award winners to hidden gems. Kim Fu’s Lesser Known Monsters leads on its 2022 awards; Urasawa’s 21st Century Boys follows as an award-winning epic.

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Quick picks

  • Lesser Known Monsters
    Most Awarded Lesser Known Monsters: TIME Top 10, Shirley Jackson Award, and multiple 2022 best-of lists. Check price on Amazon
  • 21st Century Boys Vol 1
    Epic Pick 21st Century Boys Vol 1: Urasawa’s award-winning manga epic of cults and world-saving. Check price on Amazon
  • Escape from Monticello
    Kids Pick Escape from Monticello: Treasure-hunt mystery at Monticello for young readers. Check price on Amazon

The picks

Lesser Known Monsters

Lesser Known Monsters

Kim Fu9.7/10 Shelf Score
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The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Award-winning story collection, TIME Top 10 Fiction 2022.

Pros

  • TIME Top 10 2022
  • Shirley Jackson Award
  • Multiple best-of lists
  • Literary mystery

Cons

  • Stories, not a novel
  • Literary style
  • Monsters not crime
21st Century Boys Vol 1

21st Century Boys Vol 1

Naoki Urasawa9.7/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Deluxe manga epic of doomsday cults and world-saving friends.

Pros

  • Award-winning
  • Epic scope
  • Deluxe edition
  • Urasawa craft

Cons

  • Manga format
  • Vol. 1 only
  • Epic length
Escape from Monticello

Escape from Monticello

Steven K. Smith9.6/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Kids mystery at Monticello with stolen journal and treasure.

Pros

  • Kids mystery
  • Treasure hunt
  • Historical setting
  • Series fun

Cons

  • Kids book
  • Series entry
  • Less literary
Druid Mysteries

Druid Mysteries

Philip Carr-Gomm9.6/10 Shelf Score
i
The Shelf Score runs from 9.2 to 9.8 and weighs fit for the reader or goal (35 points), contents and edition (25), value (25) and listed reading age or level (10, where the listing gives one), using only what the book listing states. How we pick ›

Druid wisdom guide for the 21st century by Chief Druid.

Pros

  • Beautifully written
  • Ancient wisdom
  • Modern application
  • Unique angle

Cons

  • Nonfiction guide
  • Not a crime story
  • Niche interest

As an Amazon Associate I earn from qualifying purchases.

Lesser Known Monsters of the 21st Century

Kim Fu’s collection: a TIME Top 10 Fiction Book of 2022, and a best book of 2022 for NPR, Book Riot, Chicago Public Library, Tor.com and others. Winner of the 2023 Pacific Northwest Book Prize and the 2022 Shirley Jackson Award. For literary mystery with monsters, this is the decorated pick.

21st Century Boys: The Perfect Edition, Vol. 1

Naoki Urasawa’s award-winning epic of doomsday cults, giant robots and friends saving the world. A deluxe bind-up edition. Humanity faced extinction at the end of the 20th century; this is what comes after. For manga mystery on an epic scale.

Escape from Monticello

Steven K. Smith’s Virginia Mysteries: a lost collection at Monticello, a stolen journal, and an enemy thought locked away. Sam, Derek and Caitlin follow letters between two sisters to a missing treasure. For young mystery readers.

Druid Mysteries

Philip Carr-Gomm’s guide to Druid wisdom for the 21st century: ancient history, beliefs, and wild wisdom. Beautifully written, per the listing. For mystical mystery rather than crime.

More picks to compare

  • Mysteries of Trash and TreasureMysteries of Trash and TreasureMargaret Peterson Haddix kids mystery with secret letters.Check on Amazon
  • 21st Century Mage21st Century MageJason Augustus Newcomb on bringing the divine down to earth.Check on Amazon
  • A Prayer Book for the 21st CenturyA Prayer Book for the 21st CenturyII McQuiston prayer book for the modern age.Check on Amazon

Compare the picks

Book Shelf Score Author Type Standout Amazon
Lesser Known Monsters 9.7/10 Kim Fu Stories 2022 awards Check price
21st Century Boys 9.7/10 Naoki Urasawa Manga Award-winning epic
Escape from Monticello 9.6/10 Steven K. Smith Kids Treasure hunt Check price
Druid Mysteries 9.6/10 Philip Carr-Gomm Guide Mystical wisdom Check price

Specifications are publisher listed, collected 18 October 2026.

How we scored them

Book Shelf Score Fit /35 Contents /25 Value /25 Age/level /10
Lesser Known Monsters 9.7 30 21 20 n/a
21st Century Boys Vol 1 9.7 29 21 20 n/a
Escape from Monticello 9.6 26 20 19 n/a
Druid Mysteries 9.6 26 20 19 n/a

Scores run from 9.2 to 9.8: each book’s point total is placed on that range, so more points always means a higher score. Reading age or level counts on a list where at least one listing gives one, and a book whose listing gives none then scores zero on it. Where no listing gives one, the score is taken over the other 85 points. Books carry no warranty, so warranty is not scored.

The Shelf Score weighs story, craft, value, fit and availability, as explained on our how we pick page. The Kim Fu leads on awards. The Urasawa follows on epic scope. The Monticello scores for young readers, and the Druid Mysteries for a different kind of mystery.

Who should read the best mystery books of the 21st century, and who should skip them

Read them if

  • You want 21st-century voices in mystery.
  • Award winners guide your reading.
  • You enjoy literary and genre blends.
  • Young readers need mysteries too.

Skip them if

  • You prefer classic golden-age mysteries.
  • You want only crime procedurals.
  • Manga is not your format.

Frequently Asked Questions

Which won the most awards?

Lesser Known Monsters: TIME Top 10, Shirley Jackson Award, Pacific Northwest Book Prize, and multiple best-of-2022 lists.

Which is best for kids?

Escape from Monticello: a kids mystery with treasure and journals.

Is 21st Century Boys a mystery?

It is a mystery epic: doomsday cults and friends uncovering the truth, in manga form.

Which is the most literary?

Lesser Known Monsters, by its awards, or Druid Mysteries for mystical nonfiction.

Lesser Known Monsters
Still deciding? Our top pickLesser Known Monsters
Check price on Amazon

See our best British mystery books and every thriller and mystery guide.

More picks: thriller and mystery and fiction.

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