The Sign of Four book cover

The Sign of Four by Arthur Conan Doyle Summary

The Sign of Four
Arthur Conan Doyle
3.89 (173483 Reviews)
Society
History
Philosophy
Visão Geral
Pontos Principais
Autor
Perguntas Frequentes

Overview of The Sign of Four

In Conan Doyle's "The Sign of Four," Holmes tackles a cryptic treasure mystery while battling cocaine addiction. This 1890 classic cemented the detective's legendary status, despite later criticism for colonial attitudes. What deadly secret connects four conspirators to India's bloody rebellion?

Similar books to The Sign of Four

Explore Seu Jeito de Aprender
Resumo Rápido8min

Sinta o livro através da voz do autor

Análise Profunda42min

Transforme conhecimento em insights envolventes e ricos em exemplos

Cartão Flash10 insights

Capture ideias-chave em um instante para aprendizado rápido

Divertido24min

Aproveite o livro de uma forma divertida e envolvente

Principais Lições

1

When Genius Meets Boredom: The Price of an Extraordinary Mind

play
00:00
00:00

What drives someone to poison themselves daily just to escape the silence of their own thoughts? In 1890, Arthur Conan Doyle introduced readers to a detective so brilliant that ordinary life became unbearable-a man who chose chemical oblivion over mental stagnation. This wasn't just shocking Victorian sensationalism; it was a profound exploration of genius as both gift and curse. The Sign of Four solidified Sherlock Holmes as literature's premier detective while revolutionizing how we think about crime-solving. Real police academies still reference Holmes's methods today, and modern adaptations like BBC's "Sherlock" prove these characters transcend their era. The novel opens with Dr. Watson confronting Holmes about his cocaine habit-a dangerous practice that horrifies the doctor. Holmes's defense is chilling: his mind "rebels at stagnation." Without challenging cases, he turns to drugs to escape crushing boredom. This scene reveals the central paradox of extraordinary intelligence-the very qualities that make Holmes exceptional also isolate him from ordinary human contentment. Unlike Watson's romanticized accounts of their adventures, Holmes approaches detection with scientific precision, having written monographs on obscure subjects like 140 types of tobacco ash and footprint preservation. When he casually deduces Watson's morning activities from mud on his shoes and ink on his finger, then reveals intimate details about Watson's deceased brother by examining a pocket watch, we witness a mind that sees patterns invisible to others-yet cannot find peace in everyday existence.

2

The Woman Who Changed Everything

3

Secrets, Treasure, and the Curse of Greed

4

Death in an Impossible Room

5

The Hunt Through Victorian London's Shadows

6

River Chase and the Empty Prize

7

The True Cost of Brilliance

Explore Seu Jeito de Aprender
The Sign of Four não é apenas um livro — é uma masterclass em Society. Para ajudá-lo a absorver suas lições da maneira que funciona melhor para você, oferecemos cinco modos de aprendizado únicos. Seja você um pensador profundo, um aprendiz rápido ou um amante de histórias, há um modo projetado para seu estilo.

Modo Resumo Rápido - Leia ou ouça o resumo de The Sign of Four em 8 minutos

Resumo Rápido
Resumo Rápido
Resumo de The Sign of Four em 8 Minutos

Divida as ideias-chave de The Sign of Four em pontos fáceis de entender para compreender como equipes inovadoras criam, colaboram e crescem.

play
00:00
00:00

Modo Cartão Flash - Top 10 Insights de The Sign of Four em Resumo

Cartão Flash
Cartão Flash
Top 10 Insights de The Sign of Four em Resumo

Destile The Sign of Four em dicas de memória rápidas que destacam os princípios-chave de franqueza, trabalho em equipe e resiliência criativa.

Flash Mode Swiper

Modo Divertido - Lições de The Sign of Four Contadas em Histórias de 24 Min

Divertido
Divertido
Lições de The Sign of Four Contadas em Histórias de 24 Min

Experimente The Sign of Four através de narrativas vívidas que transformam lições de inovação em momentos que você lembrará e aplicará.

play
00:00
00:00

Modo Personalizar - Leia ou ouça o resumo de The Sign of Four em 0 minutos

Personalizar
Personalizar
Experimente The Sign of Four do seu jeito.

Pergunte qualquer coisa, escolha a voz e co-crie insights que realmente ressoem com você.

Personalize Mode

Criado por ex-alunos da Universidade de Columbia em San Francisco

BeFreed Reúne Uma Comunidade Global De Mais De 200.000 Mentes Curiosas

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn
platform
star
star
star
star
star

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
platform
comments
12
likes
117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
platform
star
star
star
star
star

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
platform
comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
star
star
star
star
star

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
platform
comments
96
likes
4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP
platform
star
star
star
star
star

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon
platform
comments
201
thumbsUp
16

"It is great for me to learn something from the book without reading it."

@OojasSalunke
platform
star
star
star
star
star

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
platform
comments
37
likes
483

"Makes me feel smarter every time before going to work"

@Cashflowbubu
platform
star
star
star
star
star

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn
platform
star
star
star
star
star

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
platform
comments
12
likes
117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
platform
star
star
star
star
star

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
platform
comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
star
star
star
star
star

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
platform
comments
96
likes
4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP
platform
star
star
star
star
star

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon
platform
comments
201
thumbsUp
16

"It is great for me to learn something from the book without reading it."

@OojasSalunke
platform
star
star
star
star
star

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
platform
comments
37
likes
483

"Makes me feel smarter every time before going to work"

@Cashflowbubu
platform
star
star
star
star
star

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn
platform
star
star
star
star
star

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
platform
comments
12
likes
117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
platform
star
star
star
star
star

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
platform
comments
12
likes
108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
platform
comments
254
likes
17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
platform
star
star
star
star
star

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful
platform
comments
96
likes
4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP
platform
star
star
star
star
star

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

@Jaded_Falcon
platform
comments
201
thumbsUp
16

"It is great for me to learn something from the book without reading it."

@OojasSalunke
platform
star
star
star
star
star

"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn
platform
comments
37
likes
483

"Makes me feel smarter every time before going to work"

@Cashflowbubu
platform
star
star
star
star
star
Comece sua jornada de aprendizado, agora
Baixar Este Resumo

Obtenha o resumo de The Sign of Four como PDF ou EPUB gratuito. Imprima ou leia offline a qualquer momento.