The Angel of the West Window
 At the beginning of the novel Mueller has been given the possessions of a cousin, John Roger, who has recently died. Among them he finds the personal diaries of Dr John Dee, the Elizabethan Magus, Astrologer and Alchemist who served in the court of Queen Elizabeth I and was an ancestor of both Roger and the Baron. As the Baron reads the diaries, which deal with Dee's discovery of his special destiny as a Magus, his efforts to find the secret of immortality contained in the Philosopher's Stone and guide the future of England and his conversations with the Green Angel through the mediumship of the confidence trickster Edward Kelley, he realises not only that he is a descendent of Dee but may even be the reincarnated spirit of Dee himself. In so doing he begins to suspect and that the various people around him are also the reincarnated spirits of those who had played a crucial part in Dee's adventures - his housekeeper may be Dee's wife, Jane, his Russian acquaintance, Lipotin, may be the mysterious 16th Century Muscovite Mascee etc. Mueller finds himself the guardian of the Spear of Hywel Dda, another of his ancestor and part of the quest to prevent the Succubus-like figure of Black Isaïs from gaining control of it, thus completing the work Dee only part managed to achieve. As the book ends, Mueller vanquishes Isaïs in her form as the Princess Shotokalungin and becomes a Man of the Rose, part of a group of humans who have become immortal through their spiritual strivings whose task is to help mankind to develop and grow (a concept similar to that of Ascended masters or Secret Chiefs).