
Glamis Castle in the 18th century, shortly before its “mystery” began.
“If you could even guess the nature of this castle’s secret,” said Claude Bowes-Lyon, 13th Earl of Strathmore, “you would get down on your knees and thank God it was not yours.”
That awful secret was once the talk of Europe. From perhaps the 1840s until 1905, the Earl’s ancestral seat at Glamis Castle, in the Scottish lowlands, was home to a “mystery of mysteries”—an enigma that involved a hidden room, a secret passage, solemn initiations, scandal, and shadowy figures glimpsed by night on castle battlements.
The conundrum engaged two generations of high society until, soon after 1900, the secret itself was lost. One version of the story holds that it was so terrible that the 13th Earl’s heir flatly refused to have it revealed to him. Yet the mystery of Glamis (pronounced “Glams”) remains, kept alive by its association with royalty (the heir was grandfather to Elizabeth II) and by the fact that at least some members of the Bowes-Lyon family insisted it was real.

Sir Walter Scott, the popular 19th-century novelist, was the first man to tell of the ‘secret’ of Glamis.
Glamis Castle is mentioned by Shakespeare—Macbeth, that most cursed of characters, was Thane of Glamis—and in 1034 the Scottish King Malcolm II died there, perhaps murdered. But the present castle was constructed only in the 15th century, around a central tower whose walls are, in places, 16 feet thick. Glamis has been the family seat of the Strathmore Earls since then, but by the late 18th century it lay largely empty, its owners preferring to live somewhere less drafty, less isolated and less melancholy.
In their absence, Glamis was left in the care of a factor, or estate manager, and it was to this factor that a young Walter Scott applied in 1790 to spend a night in one of its rooms. Scott became the first of several writers to note the castle’s oppressive atmosphere. “I must own,” he wrote in an account published in 1830, “as I heard door after door shut, after my conductor had retired, I began to consider myself as too far from the living and somewhat too near to the dead.” What was more, the great novelist added, Glamis was said to hide a secret room—a useful addition to any residence in 15th-century Scotland, where violence was seldom far away. Its location was known only to the Earl, his factor and his heir.
In one sense, however, the most interesting thing about Scott’s account is what it doesn’t say. The novelist wrote nothing to suggest that the castle’s hidden chamber had an occupant. Yet, within half a century of his visit, it had begun to be rumored that the room concealed an unknown captive—a prisoner who had been held there all his life.
(more…)