Skip content
Celebrate indie bookstores with our limited-time sale! Shop the sale
The Long Cosmos by Terry Pratchett & Stephen Baxter
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account
IBD balloon logo

Shop the sale

In celebration of Independent Bookstore Day, shop our limited-time sale on bestselling audiobooks from April 22nd-28th. Don’t miss out—purchases support your local bookstore!

Shop now

The Long Cosmos

A Novel
Long Earth: Book #5

$29.39

Get for $14.99 with membership
Narrator Michael Fenton Stevens

This audiobook uses AI narration.

We’re taking steps to make sure AI narration is transparent.

Learn more
Length 12 hours 21 minutes
Language English
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account

""A wholly satisfying conclusion.” — Publishers Weekly

The thrilling conclusion to the internationally bestselling Long Earth series explores the greatest question of all: What is the meaning of life?

2070-71. Nearly six decades after Step Day, a new society continues to evolve in the Long Earth. Now, a message has been received: “Join us.”

The Next—the hyper-intelligent post-humans—realize that the missive contains instructions for kick-starting the development of an immense artificial intelligence known as The Machine. But to build this computer the size of an Earth continent, they must obtain help from the more populous and still industrious worlds of mankind.

Meanwhile, on a trek in the High Meggers, Joshua Valienté, now nearing seventy, is saved from death when a troll band discovers him. Living among the trolls as he recovers, Joshua develops a deeper understanding of this collective-intelligence species and its society. He discovers that some older trolls, with capacious memories, act as communal libraries, and live on a very strange Long Earth world, in caverns under the root systems of trees as tall as mountains.

Valienté also learns something much more profound . . . about life and its purpose in the Long Earth: We cultivate the cosmos to maximize the opportunities for life and joy in this universe, and to prepare for new universes to come.

The complete list of books in the Long Earth series include:


  • The Long Earth

  • The Long War

  • The Long Mars

  • The Long Utopia

  • The Long Cosmos

Terry Pratchett (1948–2015) was the acclaimed creator of the globally revered Discworld series. In all, he authored more than fifty bestselling books, which have sold more than one hundred million copies worldwide. His novels have been widely adapted for stage and screen, and he was the winner of multiple prizes, including the Carnegie Medal. He was awarded a knighthood by Queen Elizabeth II for his services to literature in 2009, although he always wryly maintained that his greatest service to literature was to avoid writing any.

Stephen Baxter is an acclaimed, multiple-award-winning author whose many books include the Xeelee Sequence series, the Time Odyssey trilogy (written with Arthur C. Clarke), and The Time Ships, a sequel to H. G. Wells's classic The Time Machine. He lives in England.

IBD balloon logo

Shop the sale

In celebration of Independent Bookstore Day, shop our limited-time sale on bestselling audiobooks from April 22nd-28th. Don’t miss out—purchases support your local bookstore!

Shop now
Celebrate indie bookstores with our limited-time sale! Shop the sale