[#1-Sherlocklovestory] John and Sherlock realize that they need someone to care for Rosie in their stead. Solution? A Nanny. After weeks of searching, they hire Susanna Markwardt; half-American, overqualified and recently retired from a wealthy family. Susanna thrives as the motley family's nanny, but as time passes she proves herself to be invaluable. Especially to Sherlock, who finds himself attracted to her, claiming that she is an anomaly to his chemical process.