Angel Falls by Kristin Hannah

In this book the main character Mikaela has a horse accident and is in a coma. Her husband Liam, a doctor, is in charge of the family and the children along with his mother-in-law Rosa. Nothing Liam does seems to help Mikaela come out of her coma. So he decides to make a call to Mikaela's first husband, a famous movie star named Julian True. His voice brings her out of her coma, but with no momory of her life with Liam or her children. Over a period of time, she regains her memory and remembers that she does indeed love her husband and promises him they would be together forever. As with all of her books it was a very enjoyable read.