A missing professor. Some nefarious men in gray suits. And a dreamworld called the Troposphere? Ariel Manto has a fascination with nineteenth-century scientists--especially Thomas Lumas and The End of Mr. Y, a book no one alive has read. When she mysteriously uncovers a copy at a used bookstore, Ariel is launched into an adventure of science and faith, consciousness and death, space and time, and everything in between. Seeking answers, Ariel follows in Mr. Y’s footsteps: She swallows a tincture, stares into a black dot, and is transported into the Troposphere--a wonderland where she can travel through time and space using the thoughts of others. There she begins to understand all the mysteries surrounding the book, herself, and the universe. Or is it all just a hallucination?

    Jack Vance is one of the most remarkable talents ever to grace the world of science fiction. His unique, stylish voice has been beloved by generations of readers. Some of his enduring classics are the 1950 novel The Dying Earth and its sequels, The Eyes of the Overworld, Cugel's Saga, and Rialto the Marvelous.