The Apple of My Eye

Sherlock Holmes and John Watson have been married for six years and are now the parents of five year old twins, Oliver and Eleanor, who are more important to them than anything. But what happens when they start to receive messages threatening the twins? Just letters at first, anonymously sent, but then there are phone calls, and Oliver tells them that a strange man talked to him at school today. Solving mysteries is Holmes and Watson's lifestyle, but what happens when it's this close to home?