Robin Murphy 
Sullivan’s Secret [EPUB ebook] 

Dr. Marie Bartek enjoys a simple life as the veterinarian of Sullivan’s Island — until her psychic abilities suddenly return after eighteen years.
Shaken by the spirits that now haunt her every moment, Marie confides in her best friend. Together, they form the Sullivan’s Island Paranormal Society: SIPS.
As new and unlikely friendships begin, Marie learns to channel her powers. When they find out that the spirits are trying to warn her of an evil presence on the island, Marie and her friends set out to bring a vicious serial killer to justice.