Passion. Love. Betrayal. And a very dramatic climax... The Unbreakable Trilogy reaches its unforgettable conclusion. A must-read for fans of erotic romance. From Primula Bond, author of Sunday Times bestselling The Silver Chain and The Golden Locket. "You don't know how beautiful you are, Serena. That's the danger." Engaged to be married, life should be blissful for Gustav and Serena. It should be a time of happiness; a time to plan their wedding and their future together. But the ghosts of Gustav's past have returned to haunt him, and one in particular casts a dangerous shadow over their relationship. Margot, Gustav's bitter and twisted ex-wife, is determined to destroy everything that Gustav holds dear. Starting with Serena... From the glamour of Paris to the exotic wilds of Morocco, The Diamond Ring will take you on a sensual, sexy journey like no other – with a finale you won't forget.