Now in service, Hetty must deal with the menacing and vengeful Lady Grenford and Brody, the new housekeeper. When Mrs Calendar entrusts Hetty with the secret of her first born son and begs for her help to find him, Hetty finds herself in more danger than ever. She is forced to face her old enemy, Matron Bottomly, and to unravel the mystery of a stranger who arrives at the house.
