Two Sisters (Kay DAVID)

Elizabeth’s heart is breaking with worry about her twin sister. April went missing the day after their last argument. Elizabeth contacts the nightclub where April works, but to no avail. Her neighbor John is there to listen to her when she’s at her wit’s end. He’s a detective and his kindness encourages her to open herself up to him. With the possibility that her sister might be in danger, the two begin their own investigation. Source; Harlequin