The Family Upstairs (The Family Upstairs Series, Book 1)

In a large house in London's fashionable Chelsea, a baby is awake in her cot. Well-fed and cared for, she is happily waiting for someone to pick her up.In the kitchen lie three decomposing corpses. Close to them is a hastily scrawled note. They've been
dead for several days.

Who has been looking after the baby?

And where did they go? Two entangled families. A house with the darkest of secrets.