Sherlock Holmes and The Scottish Question

A Scottish crown, its history lost in the mists of time, was taken by Edward the First of England from the Scottish King John Balliol whom he defeated in battle and ignominiously deposed. What if the most celebrated consulting detective in the world, at the height of his powers in 1897, was put on the trail of the Crown of Scotland? What if the most potent symbol of Scottish sovereignty was stolen, members of the British Royal Family abducted, threats made against the Queen and a campaign of terror planned by separatists aided by a Great Power? Holmes and Watson track a conspiracy against the Union by some of the highest in the land that might lead to a war of cataclysmic proportions.