Five sisters, linked by a magical necklace, battle to remain in power as the balances between good and evil begins to crumble. Meet Opal, funny and prepared for a practical joke, always on the ball and very, very clever. Age 15. Meet Ruby. Crazy, fun, pretty, sometimes a little vain and stuck up. Age 13. Meet Sapphire, wild, adventurous, and not that bright. Often makes mistakes, but a fast learner. Age 11. Meet Emerald. Pretty, timid, shy, but with a strong sense of good and bad. Prepared to stand up for her friends, just not herself. Aged 9. Meet Amethyst. Adorable, friendly, trusting. Believes in everybody, and is much more than she first appears. Aged 5. Opal, Ruby, Sapphire, Emerald and Amethyst think they are safe. But they are wrong...