P.S I Love You, by Cecelia Ahern (2004, Dublin)

Set in Dublin. Holly is a too young widow: her twin soul passed by in short time because of a cancer, but she discovers he found a way to stay for a while with her: Gerry left her ten messages, one a month, to give her month missions. That's how she can someway keep living, kind of building up her life again, helped by dear and crazy friends, other than a cheerful family. Page-turner. The reader can't help but feeling Holly's emotions.