Kidnapped at the Altar

This is a thriller fiction in which, A very eligible young man is about to marry a beautiful young heiress. The heiress gets kidnapped on their wedding day by a man who imprisons her in a tower. Meanwhile the hero rescues a young woman from being abused by her family and takes her on as a protegee. The groom presumes that his fiancee has abandoned him and he returns to normal life.