Every day, just before sunrise and straight after sunset, magic happens. Dawn and dusk – those fleeting, half-lit hours – are when the ordinary becomes extraordinary. Skies flare with colour, landscapes shift in mood and an unseen cast of creatures emerges from the shadows. Welcome to twilight.
In THE SECRET WORLD OF TWILIGHT, author and smallholder Sally Coulthard invites us into this magical in-between realm, where seductive night-blooming flowers open, secretive mammals stir, giant moths reign and fantastical sea creatures ride the tide. Twilight profoundly affects human life too – but in our age of electric light and closed doors, we've almost forgotten how to see it.
Blending natural history, folklore and memoir, Coulthard reveals twilight as a vital, liminal one that has inspired awe for millennia and still has the power to illuminate our daily lives.
After studying Archaeology & Anthropology at Oxford University, best-selling author and designer Sally Coulthard has spent the last twenty years designing, making and writing about homes, craft and outdoor spaces. She sees no boundary between the rules that govern good interior design and those which are needed to craft a spectacular studio or glorious garden.
Keen to make good design accessible, she’s written over twenty books about restoring houses, designing interiors and outdoor living. From garden styles to craftsmanship, creating workspaces to building sheds, Sally’s books inspire, encourage and equip readers to take on projects of their own.
Sally is a passionate advocate of rural living and regularly writes about nature and her experiences of smallholding deep in North Yorkshire countryside, including her ‘Good Life in Country’ column for Country Living magazine.
Thank you to NetGalley and Head of Zeus for the ARC
This book is one of those rare reads that makes you feel like the world has quietly expanded while you were turning pages.
Sally Coulthard takes dusk and reveals just how rich, magical, wild, fleeting, and absurdly beautiful it is. It's a shape-shifting liminal creature hovering between day and night.
One minute you’re absorbing animal antics and their secret twilight strategies. The next you’re tumbling headfirst into folklore, myths, and rituals that humans have performed for centuries. Science, culture, history, storytelling... they’re all mashed together in a chaotic ballet. And despite the information overload, you never feel like someone's lecturing you.
Coulthard’s writing is warm and lyrical, but never cloying. She paints with words that feel alive. There’s wonder dripping from every paragraph, pulling you into noticing the world: the tiny shifts, the sounds, the almost imperceptible transitions that we usually trudge on past. Suddenly, dusk is screaming to be noticed, and you can’t look away.
This book reframes twilight not just as a time of day, but as an ecological and cultural space. It's also about us. Our fears and superstitions. Our creativity. Our rhythms. Our history. Our connection to light and darkness. It’s simultaneously soothing and exhilarating, while being a little bit uncanny. Coulthard paints twilight as a beautiful, magical ecosystem and encourages you to notice things you don't even know you've been missing.
When I saw this book available on NetGalley, it was a no-brainer; I had to request it and hope I would be allowed to read and review it as an ARC (Advanced Reader Copy). I was very excited when I received an email notification that the book was available and ready for me to dive right in.
The reason for my excitement is that I have been fascinated by twilight from a very young age and, although I have not witnessed many dawns in my lifetime (well, the truth is that I am not a very early morning kind of individual), I have seen a few and have been mesmerised by their beauty and uniqueness.
The reality is that, every single day, dusk and dawn will happen, but not one single one of them will ever be the same. Sally Coulthard reinforces this truth and walks us through the extraordinary, breathtaking, and fascinating history of Twilight in a book written with tremendous care and wisdom, showing us how vital twilight really is to all living beings that inhabit planet Earth.
The book is jam-packed with essential scientific information, fun facts, and Sally’s personal stories about this time of day, presented in a series of “diary entries” where she discusses how the nature around her on her farm in Yorkshire is affected by dawn and dusk from Winter to Autumn.
Despite being a book about the Natural History of Twilight, Coulthard’s language is very accessible and easy to digest. I was blown away by her ability to make me laugh at times about some of the scientific facts in the book, and I was also deeply touched by the poetic descriptions of one of Nature’s most remarkable displays of beauty and care for all living creatures on this planet.
The chapter about the ocean’s twilight zone is a must-read! Simply fantastic.
One of the key messages of this book for me is that we need to, collectively, return to our roots and pay close attention to Nature and its rhythms. Sally shows, with many examples and scientific evidence, that we have been disconnected from Nature for far too long, and that our mental and physical health are unquestionably paying a terrible price.
As Sally beautifully discusses: “Twilight is the blazing cauldron that separates day from night. And, like many things in life, we have lost touch with its magic”.
To begin with I was really enjoying reading this book because of all the new information I was discovering. A very interesting thing I learnt is that there are three phases of Twilight - Civil, nautical, and astronomical!
However, once I got into chapter two, the formatting in my digital ARC was so bad that it was difficult to absorb any more information being put forward by the author, which is very disappointing as I was excited to learn more. Sadly, I ended up having to DNF at 20%.
With thanks to the Publishers and NetGalley for providing me with this digital ARC in exchange for an honest review.
Sally Coulthard has captured a condition of being that most of us dismiss as a simple transition between light and dark. In The Secret World of Twilight, she focuses on those fragile, blue-hued slivers of time where the rules of the day don't quite apply yet. The central tension isn't a plot in the traditional sense; it is the friction between our modern, artificial world of LEDs and the ancient, biological rhythms of the crepuscular hours. We have effectively paved over the dusk with electricity, and this book serves as a quiet, necessary reminder of what we lost in the trade.
The "protagonist" here is really the light itself, or the lack of it, and how it dictates the behavior of everything from night-blooming jasmine to the secretive mammals that only stir when the sun hits a specific angle. Coulthard moves through this world with the steady, unsentimental eye of a smallholder. She doesn't need to dress up the facts with flowery prose because the reality of a giant moth or a shifting tide is interesting enough on its own. It is an observational growth process for the reader; you start the book seeing a dim sky and finish it seeing a complex, high-stakes theater of survival and folklore.
I enjoy the lack of frills here. Sharp and concise, the tone prioritizes unambiguous facts over the common "nature-as-therapy" clichés that frequently overburden this genre. It has a caustic humor that prevents it from sounding like a sermon, yet it is grounded and intellectual, reminding me of the best kind of British nature writing. Without succumbing to cheap nostalgia, she puts our predecessors' terror and awe for the "gloaming" in context. It examines how humans have separated ourselves from the planet's natural cycles.
The book stands out because it refuses to be one thing. It's half scientific study, part cultural history, and part biography, but it never feels disjointed. If I had one criticism, it would be that the book makes our indoor, screen-lit existence seem especially antiseptic in comparison. It strikes a particular emotional chord, a kind of calm regret for the silence we no longer have. It does not scream for your attention; instead, it waits for you to relax and look around.
We spend so much time optimizing our days and sleeping through our nights that we ignore the most interesting part of the twenty-four-hour cycle. After reading this, you should definitely walk outside and watch the sun set without checking your phone. The world is doing something spectacular in those twenty minutes, and it doesn't care if you're watching, though you definitely should be.
Goodness gracious, this is a wonderful, wonderful book! We are all aware of twilight, the special time between clear and dark. But how deeply do we ponder it? Author Sally Coulthard describes this incredible subject in breathtaking detail with sharp clarity, yet in a friendly conversational tone. I have always enjoyed the scents of twilight flowers such as evening scented phlox and honeysuckle, the cacophony of birds early mornings, and watching fireflies and bats zip around "after hours" But this book has increased my mindfulness of these magical hours exponentially.
Not only does the author use firsthand knowledge and observations from her farm (chickens and roosters and much more) but has delved deeper into the importance and relevance of twilight. Amongst the topics which struck me most include crepuscular creatures, crucial circadian rhythm, the differences between sunrise and sunset, the fact that the moon doesn't have twilight, life forms have preferred "time-slots" (love that!), the sad and enlightening story of Michel Siffre's experiment living underground, and how many birds "see" with their skulls and brains. Some standout examples are Arctic reindeer's eyes turning golden yellow in the summer and blue in the winter, the midnight horror tree, pigbutt (!) worm (that was an interesting rabbit hole), and the sweetest in my opinion is the pollen bee snuggling into the hawkbit flowers just before they close for the night.
Since absorbing this book like a sponge, I see twilight differently. I have always enjoyed evening and predawn walks but now am even more mindful of heightened senses during these hours. I am already putting my new knowledge into practice and know it will become a lovely life habit. Anything to enrich my life in nature is a big win for me. Nature is always around me, as though our house has been plunked onto a nature reserve. But one can use this information for city park walks, too. If you enjoy the enchanting mysteries of nature, this book is unmissable.
Thank you to Head of Zeus | Apollo, the author, and NetGalley for a DRC in return for an honest review.
This book has all the comforting, quietly wondrous feel of a David Attenborough nature documentary in written form. Make your hot drink of choice, sink into your favourite armchair, put your feet up and simply soak it all in.
The Secret World of Twilight is one of those rare feel-good books that gently insists you slow down and pay attention. Blending memoir, natural history and folklore, Sally Coulthard explores the liminal hours of dusk and dawn with warmth, curiosity and an obvious depth of knowledge. Filled with fascinating facts and first-hand observations from her life as a smallholder, this is a book that consistently made me smile. Who knew twilight had so much to reveal?
Coulthard brings these in-between hours vividly to life, explaining the three stages of twilight and introducing readers to crepuscular plants and animals that thrive when the world is neither fully light nor fully dark. Her writing makes it easy to mentally picture every scene, every sound and every subtle shift in the landscape. You truly feel as though you are learning the quiet secrets that dusk and dawn have been keeping from us.
At just under 300 pages, this is a relatively short and very accessible read, though I did find myself wishing for illustrations to accompany some of the descriptions, not because the writing lacks clarity, but because the subject matter invites lingering and visual exploration.
Even though we are only one month into 2026, I can already say, hand on heart, that this will be one of my favourite books of the year. Discovering that Sally Coulthard has written over twenty-five non-fiction titles means I’ll definitely be seeking out more of her work.
The Secret World of Twilight is just the sort of non-fiction I love at the moment. Written in poetic prose with a loving appreciation of the multitudes of intricate detail that fill its pages, it is a marvellous journey into a little understood time of day, dawn and dusk. The reader happily dives deep into twilight and the creatures who thrive there, us included. It's not only daylight and nighttime that matter but the magical half light where wonders occur.
I honestly grabbed this book because I love so many crepuscular creatures - owls, bats, moths, cats - and hoped to learn more about them. I did, thank you, but learned much more than I could have expected. The terrestrial world is astounding but the lives of the creatures that dwell in the twilight zone of the sea is utterly mind-boggling. I know light pollution is a big problem, and can see the lit horizon of the nearest town from my rural door step, but never thought our artificially illuminated world could cause so much damage. Everyone should read this and strive to keep the night as dark as possible for all living creatures.
Thank you, Sally Coulthard, for your no nonsense (dare I say Yorkshire?) approach to this beautifully wondrous time and the marvels that unfold when light is soft and low. The Secret World of Twilight is choked full of amazing facts delivered in a gentle way that makes it all easily palatable and wholly intriguing. Skilfully done. I am so pleased to have found you and look forward to my next adventure with you.
Well , what can I say? The Secret World of Twilight is a real gem of a book. The quiet, hazy world she focuses on really does come to life before your very eyes.
It's one of those rare reads that's calming and sincere, yet full of the activity and hussle and bumble of those hushed, muted, soft hours that most of us rarely see.
There's animal escapades, capers and frolics, there's rich human folklore and intriguing myths, there's interesting science and enthralling culture, all mixed in with a nice dose or two of history and good old fashioned storytelling, the type of which we rarely see these days.
I absolutely adore getting up early while the world is quiet and going out on a drive with very few others on the road, then arriving at your destination when it's still early and dark. Or just going for a walk in the local woods or beaches. Same for night time drives which we often do when going on days out or on holiday to Cornwall or Scotland or other destinations, then stopping for a nap at the side of the road and just listening to the quiet of the night, seeing the stars that you rarely see when in lighted areas, maybe a bat or two passes by, or a fox emerges from the hedgerows.
So all in all, just a wonderful capturing of those small hours between light and dark.
Easily the best non-fiction book I've read in the last six months. I would not have thought that the topic of twilight would be so engrossing. Every page was something new and unexpected. I requested the ARC because there was a barn owl on the cover, which is my son's favorite animal. I thought I'd learn some new barn owl facts to tell him and then skim the rest. I was wrong. I was completely unable to skim because each page was just too interesting and unexpected to speed up that way. Here's two of the most interesting facts from the book: 1) owls and ducks can perceive twilight even if their eyes are covered/damaged because their heads are translucent and there are photoreceptors directly on the surface of their brain. Experiments on human cadavers suggest the possibility that humans might be able to "see" with our ears because the ear canal is the only translucent place where light can enter the skull. If there are found to be photoreceptors there, then perhaps we too can see twilight without our eyes. 2) During the "golden age" of Islamic thought, a scholar was able to figure out the thickness of the atmospheric layer around the earth by measuring twilight.
I recommend this book highly. It's a lot more interesting than expected.
This wasn't quite what I was expecting. The first few chapters dragged a bit for me as I was expecting some lyrical nature writing; what I got was much more science based. Not a bad thing, but it took me a while to read through it. There is some truly fascinating information in here; I loved finding out about how light levels affect life in the ocean depths. This is more to do with what twilight is, although there is plenty of information about how plants and animals, (including us), need and/or react to twilight. I knew that our artificially lit world was damaging, but not the true extent.
A good book, which I would recommend to anyone with even a passing interest in the subject.
*Many thanks to Netgally and the publishers for a copy in exchange for an honest opinion.*
Thank you to both #NetGalley and Head of Zeus | Apollo for providing me an advance copy of Sally Coulthard's #nonfiction work, The Secret World of Twilight, in exchange for an honest review.
#TheSecretWorldofTwilight is a reflective work about the magical hours of twilight (i.e., dawn and dusk), paying homage to those times through a medley of musings, writings, facts, and synopses from earlier authors. Though I am not familiar with this particular author's nonfiction works, the piece was intriguing and is a good read for those wanting to learn more about the history of those hours, or simply to read something new and jog their creative juices.
A quaint little book that provides a high-level overview of the history & natural science of twilight - covering topics related to biology, ecology, astronomy, world history, and human interest. Golden hour & the subsequent period of diffuse twilight have been the backdrop for many of my most cherished memories and it was fun to take a deeper dive into it's physical & scientific characteristics as well as the long human love affair with this specific time of day. My only complaint (mostly of interest to NetGalley) was that sections of the ebook I was provided were formatted as to be basically unreadable, but I'm sure this will be solved by the final printing.
I really loved this book, it hardly felt like it was nonfiction, because it was so easy to read and the writing was very engaging. I absolutely loved the different aspects of twilight, the beauty, folk lore, history, language surrounding it. It really opened up the way I think about the world around me and how as the world gets dark there is so much beauty you don’t even see if you don’t stop to look around every once and awhile. Over all such a great read! I highly recommend it.
🌸I recieved a free copy of this book in exchange for an honest review🌸 I really, really enjoyed this book and would recommend to anyone who has some interest in nature/ natural history/ twilight hours. There was lots of interesting facts in a good amount of detail - it never rambled on about a singular topic unnecessarily which I appreciated! I don’t really have any complaints!
Lovely gentle read. Felt a bit like ambling down a country lane flitting through different topics. Lot of natural history UK based plus musings into other areas. Enjoyable. Thank you to the author. Thank you to #netgalley and the publisher for an ARC.