Alchemy and the Order of the Rosy Cross

Mary is leaving John and going to work for MI 6. John moves in with Sherlock, but things are not so harmonious. Sherlock is starting to get bored and is beginning to take dangerous chances with his health. However, when Mycroft recruits Sherlock, John , and Mary for a mission, they must learn to work together if they are to stop an evil plot that is being hatched in Prague. A plot