This is going to be a quick one because I'm not convinced this book has much to do with Shakespeare.
I found it on a list of modern novels that retell the works of Shakespeare—in the King Lear section. And the novel is about a father who is not very good at being a father and three daughters—well, four, but one dies early on and comes back as a ghost to haunt the others.
But apart from that general framework, I'm not finding much that reflects the play. Are there any readers out there who know this book and who can point me in the right direction?
Oh, there's also one direct reference to King Lear (other than the title, that is). Here it is. One of the daughters returns the school-owned copy of King Lear, saying that she doesn't need it since she is living it every day.