The Houseboat by the Quay by Elise Darcy

Would you risk it all to find where you truly belong?
Lexi’s dream life is about to fall apart in a spectacular fashion. Living in New York with her best friend and soulmate, Brandon, Lexi is not prepared for her life to unravel when she unexpectedly returns home from work one Monday morning.
Reeling from a betrayal, she returns to her grandparents in Connecticut where she grew up. She hasn’t been back since she lost her mother six months ago. She knew going back would be a mistake. There would be strings attached; a job in their firm and a life Lexi did not want.
A phone call from the lawyer who handled her late mother’s estate brings some unexpected news; a letter has surfaced which she should have received months ago. Lexi has been given specific instructions by her late mother to deliver the sealed letter personally to a reclusive writer who lives in England, and to tell no one about her trip.
Lexi had always intended to return to England. Now this was a perfect excuse to go. But who is this reclusive writer and what secrets are hidden in that letter? Will she discover the reason her early life in England was never spoken of, and her desire to return to the country of her birth always discouraged?