You're back! And this time you and your friends have been invited to Sherlock's Ultimate Challenge. You and your friends eagerly approach the entrance of 221B Baker Street in London, hoping you're up to this latest challenge from your favorite detective, Sherlock Holmes. As the door creaks open, you step inside and greet Mrs. Hudson who is making tea in the kitchen."We've been expecting you!" she exclaims. "Sherlock and Watson have left you a new challenge, and if you accept, you will have the opportunity to have dinner with them and work on their latest case! All the clues you need are located in the study. Will you accept the ultimate challenge? You and your friends exchange looks of excitement and determination before responding to Mrs. Hudson, "Yes, we believe we will...this is a most unusual challenge, a most unusual challenge indeed."