What would you sell your soul for? Sixteen-year-old Sarah Trevelyan would give anything to regain the power and wealth her family has lost, so she makes a bargain with Azrael, Lord of Darkwater Hall. He gives her one hundred years and the means to accomplish her objective--in exchange for her soul. Fast-forward a hundred years to Tom, a fifteen-year-old boy who dreams of attending Darkwater Hall School but doesn't believe he has the talent. Until he meets a professor named Azrael, who offers him a bargain. Will Sarah be able to stop Tom from making the same mistake she did a century ago? This is smart fantasy mixed with elements of horror from master storyteller Catherine Fisher. She says, "Darkwater Hall is an image of the power and knowledge we all desire. But what will we pay for them, and are they worth the price?"
Sixteen-year-old Sarah sells her soul to reclaim her family's estate and is given 100 years to atone for their sins, but as the bargain nears its end, modern-day Tom, yearning to attend the private school that Darkwater Hall has become, gets caught up in the bargain.