Through the Gates of the Silver Key by E. Hoffman Price and H. P. Lovecraft

When Randolph Carter is declared legally dead, a friend recounts Carter’s incredible journey through alternate dimensions after unlocking a mysterious silver key. As Carter’s soul travels beyond time and space, he encounters godlike beings and is forced to confront the nature of identity itself. The plot is a metaphysical odyssey through mind-bending realities. A deep, philosophical tale of transformation and cosmic knowledge. A sequel that takes Carter far beyond the Dreamlands—into the structure of existence itself.