The problem of Thor Bridge

"Neil Gibson, who has earned the nickname the Gold King for his status as the world's greatest gold-mining magnate, seeks Sherlock Holmes' help in finding his wife's real killer. His governess, Miss Dunbar, has been convicted of the crime due to an abundance of evidence against her- including a gun in her wardrobe- but Gibson believes her innocent. A few enlightening revelations, including the unhappy state of the Gibsons' marriage, lead Holmes and Watson down the path toward the truth."@en
"A love triangle culminates in the shooting death of the wife and murder charges against the household's beautiful governess. The arrogant, combative husband seeks the services of Sherlock Holmes to clear the young lady in question. The case appears cut and dried, 'til a stroke of insight leads the detective to the solution to the perplexing evidence."@en
"In "The Problem of Thor Bridge," Neil Gibson, who has earned the nickname the Gold King for his status as the world's greatest gold-mining magnate, seeks Sherlock Holmes' help in finding his wife's real killer. His governess, Miss Dunbar, has been convicted of the crime due to an abundance of evidence against her--including a gun in her wardrobe--but Gibson believes her innocent. A few enlightening revelations, including the unhappy state of the Gibsons' marriage, lead Holmes and Watson down the path toward the truth."@en