1588. Sir Adam Macrae, a stubborn Scot and the greatest living weather magician, is imprisoned in the Tower of London for seditious speeches against the reigning Queen Elizabeth. For many months he has been waiting for death, but one day two visitors appear in his cell: John Dee, the magician of Her Majesty, and the beautiful Isabel de Cortes. Dee makes a stunning offer to McRae: freedom in exchange for creating a storm of such force that it would help cope with the Spanish Armada. His assistant will be Isabel de Cortes, the most seductive of women. Will McRae fulfill the request of the hated queen? And will she be able to resist the beautiful Isabel?