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The Thinning

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An eclipse is coming, and with it, a young woman’s one chance to save the world, in this gripping speculative environmental thriller

Now available for preorder. All preorders will ship on or before May 5, 2026.

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Forthcoming: 6/2/26

$17.95 $13.46

What people are saying…

“Stunningly wrought . . . The Thinning moves with the compressed momentum of a thriller toward a spectacular climax.”
—Guardian

“Heart-racing . . . [An] emotive tour de force.”
—Australian Women’s Weekly

“A spine-tingling literary thriller that will keep you racing to the end. The Thinning blurs the lines between animal, human, and adaptation, and provides a gripping glimpse of our possible future through a fascinating astrological lens. An emotional tribute to the natural world. Moving. Urgent. Beautifully written.”
—Karen Viggers, author of The Orchardist’s Daughter

“Opened the cover; lost the rest of the day. Incandescent, righteously angry, superbly constructed. I am grateful for the reading experience, and grateful that the book was written and published.”
—Michael Winkler, author of Grimmish

“This is a book I wanted to race through and savor in equal measures. Simpson is a writer of astonishing insight into the ways humans simultaneously destroy and revere the environment, and The Thinning is an urgent, exceptional novel. Her best yet.”
—Eleanor Limprecht, author of The Coast

“Grapples with ecological turmoil and grief [with] heart and humanity . . . Simpson’s respect and knowledge of country and astronomy shine through in the evocative language, drawing an exquisite image in the reader’s mind . . . An epic and hopeful journey, perfect for readers of thrillers and novels such as Robbie Arnott’s Limberlost.”
—Books+Publishing

“A beautifully written story about nature, climate crisis, the night skies, and humanity coming
together.”
—Readings

“Inga Simpson writes beautifully about place and nature . . . There’s an acute sense of observation and a quiet interest in the world.”
—Bookshelf, Radio National (Australia)

“Heart-thumping action and—again and again—beautiful descriptions of the land on which we
live, and the skies that surround us.”
—Kate Evans, ABC Arts

“Taut, fast-paced, and brimming with tension. Expertly structured, it weaves past and present together in a seamless, moving story that shows the direct impact of the political on the personal.”
Conversation

“Strong, resonant . . . A literary dystopia written on a utopian palimpsest.”
—Age

“Hauntingly strange and exquisitely written.”
—Saturday Paper


Description

FIN GREW UP BY AN OBSERVATORY, learning about telescopes and planets, inspired by the passions of her mother and father, then leaders in their fields of astrophotography and astronomy. Those days are long over. Now Fin, her mother Dianella, and a band of outliers live deep off the grid, always on amber alert and always ready to run.

In the outside world, things are not good: extinctions and a loss of diversity threaten what’s left of the environment. With a new disaster looming, Fin finds herself thrust into an unlikely partnership with a stranger who has appeared in their camp. Terry is one of a new breed of evolved humans, the Incompletes, who are widely distrusted. But the pair will need to work together during a dangerous journey if they are to play their part in a plan to help restore the natural world—and humankind.

The Thinning is an exquisitely written novel of both nature and urgent psychological suspense. There are echoes of Margaret Atwood in its themes about fertility, and it is also reminiscent of Rumaan Alam’s Leave the World Behind, Megan Hunter’s The End We Start From, and Joanne Ramos’s The Farm.


Book Details

  • Paperback: 288 pages
  • Published: 6/2/26
  • IBSN: 9781636142944
  • e-IBSN: 9781636142951

Author

INGA SIMPSON began her career as a professional writer for the Australian government before earning a PhD in creative writing. Her novels Mr. Wigg, Where the Trees Were, The Last Woman in the World, and Willowman have earned a number of awards and honors in Australia, including the BookPeople Adult Fiction Book of the Year. She was awarded the final Eric Rolls Prize for her nature writing and has obtained a second PhD, exploring the history of Australian nature writers; her own account of her love of Australian nature, Understory, was published in 2017. Simpson lives on the New South Wales southern coast, among trees.

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