The Summer We Came to Life by Deborah Cloyed

This is a story about friendship, here on earth and from beyond the grave.  The characters are really well developed and the plot is fairly good.  4 friends from high school grow close as adults.  One of the the friends, Mina, dies of cancer,  and to honor her the friends get together with some of the parents for a yearly vacation.  Kendra, one of the friends, is having relationship problems with her significant other and does not attend.  (She is pregnant and knows her boyfriend does not want the child).  She does not give a reason why she can't come.  Her friends think she is just too busy. 

The vacation goes along fine until Samantha and Isabel, two of the friends, nearly drown in a freak wave.  Sam has an out of body experience and sees Mina, who tells her what is going on with Kendra.  I enjoyed the book to this point, but did't like the ending.  With Mina's influence, all the other members of the group help Kendra decide to keep her child and volunteer to help her raise it.