Everything about the cover of this tale of gangster bridal woe screamed ‘THIS REALLY IS NOT YOUR SORT OF BOOK, BRONTE’: the Woman’s-Own-headline-esque title, the rose-between-two-Kray-shaped-thorns picture of its heroine, and the melodramatic front blurb trumpeting ‘the first full account of the beautiful, innocent young woman who married Reggie Kray – and became trapped in…