A complex and ambitious novel which centres on the life of the Elizabethan magus, John Dee, in England, Poland and Prague, as it intertwines past and present, dreams and visions, myth and reality in a world of the occult, culminating in the transmutation of physical reality into a higher spiritual existence. John Dee, through his 20th century descendant, is led by the Green Angel to the 'Other Side of the Mirror'. From the erotically alluring Assja Shotokalungin (in all her incarnations), the pliant Jane, the mischievous Queen Elizabeth 1 to the earless charlatan Kelley, the truly grotesque Bartlett Greene and the sinister Emperor Rudolph1, John Dee heads a cast which lingers in the mind long after the book has been put down.