Once there was a gypsy queen who wore on her wrist a chain of six lucky charms - a golden crown, a silver horse, a butterfly caught in amber, a cat's eye shell, a bolt of lightning forged from the heart of a falling star, and the flower of the rue plant, herb of grace. The queen gave each of her six children one of the charms as their lucky talisman, but ever since the chain of charms was broken, the gypsies had been dogged with misfortune. Luka and Emilia travel to London to find the last of the Graylings tribe, who has married a Puritan lawyer and turned her back on her past. As well as all the perils of the capital city, the children must escape the vengeful Coldham, and still get to Kingston-Upon-Thames in time to rescue their families. But then, on the anniversary of his greatest victory, the Lord Protector Oliver Cromwell is mysteriously stricken down... everything will change.