Sherlock and his obsession with disguise
One of the most interesting things about Sherlock Holmes is how often he relies on disguises. Holmes appears as clergymen, sailors, booksellers, and even opium addicts — sometimes fooling Watson completely.
But the disguises aren’t just entertaining plot devices. They reflect a deeper Victorian anxiety about identity itself. In Doyle’s London, people could disappear into crowds, reinvent themselves, and hide behind respectability. The Holmes stories are full of characters leading double lives or concealing their true nature.
What makes Holmes fascinating is that he fights deception through deception. He uses masks to uncover truth. And in many ways, he understands something modern readers still recognise: most people perform versions of themselves for the world.
That may be why these stories still feel contemporary. Beneath the fog, disguises, and gaslight, Doyle was writing about a society where appearances could no longer be trusted completely which feels surprisingly familiar today.