Gustav Meyrink (Vienna, 1868), illegitimate son of the famous actress María Meyer and Baron Karl von Venbüler, went to school in Munich and Hamburg, and studied the baccalaureate in Prague. From then on his fate was linked to this city. His peculiar hobbies, his turbulent nightlife, his magnetic personality and a sense of honor that forced him to fight continuously in duel, made him the terror of the Praguense bourgeoisie. Meyrink considered himself clairvoyant and practiced spiritualism. He acquired great dominance of the body and mind thanks to yoga, experienced with drugs and became an alchemist consummate. Meyrink's works, among which is his immortal novel El Golem, seem the times. The angel of the Western window, Meyrink's latest novel, tells the fantastic story of a man who, after taking care of the papers of a deceased cousin, begins to have nightmares and visions about his ancestor, the enigmatic John Dee, famous occultist English who lived between 1527 and 1609. He then receives the visit of two strange characters, the mysterious Lipotin and the seductive Assja Chotokalungin, who claim the legendary spearhead of Hoël Dhat spear, of which he knows nothing. The action of the novel, which takes place in England, Poland and Prague, oscillates between the real and the dreamlike, and traveling from the dawn of the twentieth century to the reign of Isabel I. The story intends to illustrate the law of karma, as well as expose the Fundamentals of true alchemy: procure the human being an immortal vehicle to achieve the resurrection of the flesh.