The Riddle of Glenmore Castle

A peaceful retreat. A deadly secret. A mystery buried for generations.

When Sherlock Holmes and Dr. John Watson travel to the remote Glenmore Castle in the Scottish Highlands, they expect nothing more than a quiet escape from London.

Their hopes are shattered when an elderly guest dies in what appears to be a tragic accident.

But Holmes sees what everyone else overlooks.

Before long, another guest is murdered, an ancient family secret begins to emerge, and a cryptic riddle hidden for generations points toward a forgotten chamber beneath the castle itself.

As a violent storm cuts the castle off from the outside world, Holmes must uncover the truth before greed, ambition, and long-buried lies claim another victim.

The Riddle of Glenmore Castle is the first novel in The Unpublished Cases of Sherlock Holmes—a classic detective mystery in the spirit of Arthur Conan Doyle, featuring hidden passages, secret inheritances, impossible puzzles, and the brilliant deductions of the world's greatest consulting detective.

A peaceful retreat. A deadly secret. A mystery buried for generations.

When Sherlock Holmes and Dr. John Watson travel to the remote Glenmore Castle in the Scottish Highlands, they expect nothing more than a quiet escape from London.

Their hopes are shattered when an elderly guest dies in what appears to be a tragic accident.

But Holmes sees what everyone else overlooks.