The best thrillers set on an island

Why am I passionate about this?

I’ve always been fascinated by the sea. I grew up near the gentle waters of England’s Kent coast, then went to St Andrews University, surrounded by the treacherous North Sea. Finally, I discovered the Devon shores, which inspired Agatha Christie. In island thrillers like hers, the power of the sea becomes overwhelming. It holds suspects at bay, becomes a murder weapon, and constrains both innocent and guilty until justice is done. For me, this is the ‘locked room’ mystery in its purest form: an isolated location and a limited number of suspects–causing unlimited amounts of tension. I hope you love these stories as much as I do.


I wrote...

The Invitation

By Alice Castle,

Book cover of The Invitation

What is my book about?

Thirteen old friends meet for a weekend party on a Cornish island, cut off from the mainland by the tides for most of the day. By the next evening, only twelve are still alive. A killer is on the loose.

As a storm traps them on the island and past betrayals and grievances are revealed, nerves fray, and friendships begin to fracture. There is no escape and no way of calling for help. The killer must be found, or they will strike again. The book asks how well we know our oldest friends and whether we could, or should, trust them with our lives. 

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The books I picked & why

Book cover of And Then There Were None

Alice Castle Why did I love this book?

I loved this book because Agatha Christie is at her most ruthless in it. It crushes the idea that she is the queen of cozy crime–there is nothing remotely cuddly about what happens on this island.

I really enjoyed the skillful way that details were gradually revealed about each visitor’s past, drawing me into the story. Then shock followed shock as an unseen hand meted out long overdue punishments.

I found these delayed retributions horrifying, yet at the same time richly deserved. The eventual solution to the mystery is as ingenious as it is satisfying. 

By Agatha Christie,

Why should I read it?

16 authors picked And Then There Were None as one of their favorite books, and they share why you should read it.

What is this book about?

Agatha Christie's world-famous mystery thriller, reissued with a striking new cover designed to appeal to the latest generation of Agatha Christie fans and book lovers.

Ten strangers, apparently with little in common, are lured to an island mansion off the coast of Devon by the mysterious U.N.Owen. Over dinner, a record begins to play, and the voice of an unseen host accuses each person of hiding a guilty secret. That evening, former reckless driver Tony Marston is found murdered by a deadly dose of cyanide.

The tension escalates as the survivors realise the killer is not only among them but…


Book cover of The Lighthouse

Alice Castle Why did I love this book?

I have always been a huge fan of PD James’s writing style, and I had the pleasure of meeting her many years ago. She told me one of her earliest memories was hearing the nursery rhyme Humpty Dumpty at the age of three and immediately wondering, ‘Was he pushed?’

This book was her second-to-last whodunit and is a gripping reworking of the ‘murder on an island’ theme. Her detective, Adam Dalgleish, strives to solve the mystery and unravel his own complex feelings towards his life on the mainland. As always with one of her books, I felt in safe hands with a master storyteller who was never afraid to ask difficult questions. 

By P. D. James,

Why should I read it?

2 authors picked The Lighthouse as one of their favorite books, and they share why you should read it.

What is this book about?

Now a major Channel 5 series

'The Queen of Crime.' New York Times

Combe Island off the Cornish coast is a restful retreat for the rich and the powerful. But the peace of the island is violated when one of its distinguished visitors is murdered.

Adam Dalgliesh is called in to solve the mystery quickly and discreetly, but at a difficult time for him and his depleted team. Hardly have the team begun to unravel the complicated motives of the suspects that there is a second brutal killing and the whole investigation is jeopardised when Dalgliesh is faced with a…


Book cover of Lord of the Flies

Alice Castle Why did I love this book?

I love this book because it has such a strong, dystopian message. It is told by a group of children who find themselves marooned on an island.

This tale is not for the faint-hearted. It catalogs a rapid descent into cruelty and barbarism, while the growth of warring factions and the development of superstition add to the sense of menace.

I also love that the publishers heavily edited this book before it was put on sale, including removing the first section entirely. It’s a great lesson that sometimes less really is more. 

By William Golding,

Why should I read it?

12 authors picked Lord of the Flies as one of their favorite books, and they share why you should read it.

What is this book about?

A plane crashes on a desert island and the only survivors, a group of schoolboys, assemble on the beach and wait to be rescued. By day they inhabit a land of bright fantastic birds and dark blue seas, but at night their dreams are haunted by the image of a terrifying beast. As the boys' delicate sense of order fades, so their childish dreams are transformed into something more primitive, and their behaviour starts to take on a murderous, savage significance.

First published in 1954, Lord of the Flies is one of the most celebrated and widely read of modern…


Book cover of Shutter Island

Alice Castle Why did I love this book?

I found this book sinister and compelling, playing as it does with ideas of madness and sanity, innocence, and guilt.

It is full of layers and constantly made me second-guess my theories on where the plot was heading. I also liked the fact that the author said he was inspired by the works of the Brontë sisters, whom I studied at university.

I could feel echoes of their work in the claustrophobia and chaos of this book. 

By Dennis Lehane,

Why should I read it?

9 authors picked Shutter Island as one of their favorite books, and they share why you should read it.

What is this book about?

The basis for the blockbuster motion picture directed by Martin Scorsese and starring Leonardo DiCaprio, Shutter Island by New York Times bestselling author Dennis Lehane is a gripping and atmospheric psychological thriller where nothing is quite what it seems. The New York Times calls Shutter Island, “Startlingly original.” The Washington Post raves, “Brilliantly conceived and executed.” A masterwork of suspense and surprise from the author of Mystic River and Gone, Baby, Gone, Shutter Island carries the reader into a nightmare world of madness, mind control, and CIA Cold War paranoia andis unlike anything you’ve ever read before.


Book cover of Evil Under the Sun

Alice Castle Why did I love this book?

I’m not supposed to feature the same author twice–but I can’t help it, as I love the fact that Agatha Christie re-uses Burgh Island in Devon, the real-life setting for And Then There Were None, in this second brilliant whodunnit written two years later (1941).

This time, the island's geography is crucial for the complex plot, which involves scrupulous timing–and quite a lot of rowing–on the killer's part. I enjoyed the cast of characters, including the wonderful Hercule Poirot and a deliciously horrible actress cast in the role of a lifetime.

Above all, the book shows Christie’s amazing versatility. This is by no means a retread of her earlier hit, but it is an outstanding novel in its own right. 

By Agatha Christie,

Why should I read it?

1 author picked Evil Under the Sun as one of their favorite books, and they share why you should read it.

What is this book about?

One of Agatha Christie's most loved mysteries, Evil Under the Sun remains one of her best and most delightfully cryptic murder mysteries ever, read by Poirot himself - David Suchet.

It was not unusual to find the beautiful bronzed body of the sun-loving Arlena Stuart stretched out on a beach, face down. Only, on this occasion, there was no sun... she had been strangled.

Ever since Arlena's arrival at the resort, Hercule Poirot had detected sexual tension in the seaside air. But could this apparent 'crime of passion' have been something more evil and premeditated altogether?


You might also like...

The Blue Prussian

By Eve Penrose,

Book cover of The Blue Prussian

Eve Penrose

New book alert!

What is my book about?

The Blue Prussian is a spellbinding story told by Blake O’Brien, a beautiful, young executive with a globetrotting career. Blake returns to her native Manhattan from San Francisco after escaping—or so she thinks—her marriage to a dashing man who turned out to be a prince of darkness. She had been hoping for a fresh start but learns that she has been poisoned with thallium—a deadly neurotoxin referred to as the poisoner’s poison.

Blake is treated with the only known antidote—Prussian blue—the same synthetic pigment with the deeply saturated hue used in dazzling masterpieces like The Starry Night and The Great Wave. Almost unfathomably, the alchemist who invented Prussian blue was the rumored inspiration for Mary Shelley’s character, Dr. Frankenstein. The similarities to Blake’s financier ex are striking as his true nature is revealed—including the discovery of a secret room in the brooding Victorian home where they lived their married life together.

The stylish enclaves of Beekman Place in New York City, Nob Hill in San Francisco, and the Mayfair neighborhood in London provide the backdrop as this chilling tale of treachery and betrayal unfolds. Blake’s resolve triumphs, and the camaraderie of her loyal and charismatic friends fortifies her as she takes the reader on a tantalizing international pursuit to try to catch her poisoner, who is known to the FBI as The Blue Prussian.

The Blue Prussian

By Eve Penrose,

What is this book about?

"A modern-day Gaslight"

The Blue Prussian is a spellbinding story told by Blake O'Brien, a beautiful, young executive with a globetrotting career. Blake returns to her native Manhattan from San Francisco after escaping—or so she thinks—her marriage to a dashing man who turned out to be a prince of darkness. She had been hoping for a fresh start but learns that she has been poisoned with thallium—a deadly neurotoxin referred to as the poisoner's poison.

Blake is treated with the only known antidote—Prussian blue—the same synthetic pigment with the deeply saturated hue used in dazzling masterpieces like The Starry Night…


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