Stephen Ezard is a reclusive, brilliant mathematician who returns home to England to attend his brother Michael's funeral. Michael was an aid worker killed by a landmine in Afghanistan. After years of working in near-isolation in China, Stephen struggles to reconcile his carefully controlled world with a brother he did not know, in a police-state London he does not recognize. He finds himself falling in love with his brother's widow and becoming the...

Year three at Hogwarts means new fun and challenges as Harry learns the delicate art of approaching a Hippogriff, transforming shape-shifting Boggarts into hilarity and even turning back time. But the term also brings danger: soul-sucking Dementors hover over the school, an ally of the accursed He-Who-Cannot-Be-Named lurks within the castle walls, and fearsome wizard Sirius Black escapes Azkaban.