Sherlock Holmes: Sherlock Holmes vs The King of Thieves is the fourth title in the adventure series from Frogwares. Sherlock Holmes, receives a strange letter signed by Arsène Lupin, aka the king of thieves, challenging Holmes to prevent him from various robberies in London, with the purpose of humiliating England itself.

With patriotic fervor, England's most famous detective decides to stop the Frenchman but the task will not be easy: Lupin's skill, his numerous disguises, and his audacity transform this chase into a matter of honour and integrity for the two men. Two wits are fighting together in 19th century London where even the Queen Herself could have cause for concern!

Release: Q3 2007.