In one of the many fantastic reviews for Sinead Moriarty's fourth novel, ''In My Sister's Shoes'', the reviewer praised Sinead's ability to apply 'the light tender touch to dark, painful subjects'. It's a perfect description of how Sinead tells the story of a younger sister stepping in to help out when her older sister is diagnosed with cancer. In a similar way to Marian Keyes, Sinead manages to balance light and dark with wonderful finesse, warmth and humour. Kate O'Brien is thirty and has very little to think about except trying to keep her balance as she totters up London's media-land ladder. Fiona O'Brien is Kate's responsible older sister - with a husband, twin boys, a dog and now ...a life-changing problem. It's a problem that means Kate going back to Dublin. Pronto. There she finds herself stepping into Fiona's shoes - and discovering that she's definitely not cut out to be a domestic goddess. On top of that, the ex she thought she'd got over years ago turns up to haunt her. Will either of the O'Brien sisters survive? And even if they do, can either of them slip back into their old shoes ever again?Sinead Moriarty's novels have sold over half a million copies in Ireland and the UK and she is a four times nominee for the popular fiction Irish Book Award. She has won over readers and critics telling stories that are funny, humane, moving and relevant to modern women. ''In My Sister's Shoes'' is Sinead at her very best. Sinead Moriarty lives with her family in Dublin. Her other titles are: ''The Baby Trail''; ''A Perfect Match''; ''From Here to Maternity''; ''Keeping It In the Family'' (also titled ''Whose Life Is It Anyway?''); ''Pieces of My Heart''; ''Me and My Sisters''; and, ''This Child of Mine''.