Sometimes the truth lies in the things you cannot see.In 1830 a young novice called Catherine Labouré was granted a vision of the Virgin Mary. Nearly 200 years later, Sister Anne is also waiting for a sign. Which is why she accepts a mission to go to a tiny community on an island just off the coast of BrittanyHer only companion there is a sceptical, chain-smoking older nun who just wants to be left in peace.On the island she meets Hugo, the son of a devout family who prefers to look for the meaning of life amid the stars; Madenn, a grandmother whose daughter was killed in a crash and who finds meaning in routine; Isaac, Madenn''s grandson, an otherworldly teenager who doesn''t fit in but who befriends Hugo, and Julia, a sickly childIf anyone needs a miracle, it is her.But it is not Sister Anne who receives a vision. Instead it is Isaac who is found on a promontary, transfixed, unable to utter more than the words ''I see''. The event soon becomes headline news and the world descends on