What hurts the most

This is the sequel to, "How do I go on," so spoiler alert to anyone didn't read the prequel. Six months after the death of his wife, Watson still struggles with day to day life, while he and Sherlock try to survive with the impending threat, of a mobile Isabelle. An old enemy reemerges and old faces are called in to help. JJ seeks comfort, from a sympathetic friend.