Letters to My Daughters by Emma Hannigan

Throughout their lives, the three Brady sisters have always been closer to their nanny May than to their own mother, Martha a busy midwife. May always thought of them as her daughters so when she dies suddenly, the sisters are left devastated -- especially when they learn that letters intended for them from May with final words of advice and love have gone missing.
But what words of advice could the sisters need?
Beatrice, owner of exclusive wedding boutiques, is busy and fulfilled. Rose has a beautiful daughter, a luxurious home and a thriving interiors company. And Jeannie, married to a wealthy plastic surgeon in L.A., wants for nothing.
Except that each of the sisters carries a secret ...
As they gather for the reading of May's will in Dublin, they must face some life-changing decisions. Will they ever learn the words of advice May had for them and discover who took the letters?
Letters to my Daughters is a spellbinding story about the complicated bonds between women -- daughters, mothers, sisters -- and how love and happiness comes in many guises.