(W) Ryosuke Takeuchi. William James Moriarty and Sherlock Holmes meet again on a train back to London* and a dead body is discovered in a locked passenger cabin with John Watson named the prime suspect! Sherlock challenges William to a contest to be the first to solve the murder and clear John's name. Back in London* a state secret which only the royal family is privy to has been stolen and MI6 is tasked with retrieving it* lest the whole empire fall into ruin! Meanwhile* Sherlock is visited by the king of Bohemia* who asks him to cover up a recent scandal... For older teen audiences.