When a terrible accident leaves her orphaned at fifteen, Mary Lennox is sent to live with an uncle she's never met. At first she believes this new manor will be just like the one she left in Toronto: cold and isolating, where staff is treated as staff and never like family. But as she slowly allows her heart to open, Mary comes to find that this strange place and its strange people--most of whom are Métis--may be what she can finally call home. Then one night Mary discovers Olive, her cousin who has been hidden away in an attic room for years due to a "nervous condition." When Olive's domineering stepmother returns to the manor, it soon becomes clear that something sinister is going on. With the help of a Metis girl named Sophie, Mary begins digging further into family secrets to figure out how to free Olive. And some of the answers may lie within the walls of a long-forgotten garden the girls stumble upon...