A girl who collects moonlight and a boy who has stolen what is the most important thing to her go on an adventure that will change their lives. Twelve-year old Rooney de Barra collects moonlight in order to survive, she uses a lunar mirror, one that is so precious to her in order to collect it. Her only companion is a rat. She is essentially an orphan just trying to survive. Trick Aidan is part of a rival gang of children who also collect moonlight, and the worst part is that they all bully and chase after Rooney. After one particularly bad confrontation, Trick steals Rooney’s mirror and is then swallowed by a pool of darkness. Rooney has no choice but to follow because she wants her mirror back, even if it means entering into an ominous pool of darkness. When she awakens, Rooney and Trick find themselves in the Plentiful Darkness, a place devoid of sky and stars and ruled by a girl who is trapped there and can use magic. Now both of them must come together in order to escape and try and help the children that are already trapped there too.

*Thanks Netgalley and Macmillan Children's Publishing Group for sending me an arc in exchange for an honest review*