斯嘉麗•托馬斯（Scarlett Thomas，1972— ），除《Y先生的結局》外，其他小說作品有《光彩年華》《外齣》和《流行公司》等。入選《獨立報》評選的英國年輕作傢Top 20。2002年獲Elle雜誌風格人物大奬。目前在肯特大學教授英國文學與創意寫作。

A cursed book. 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? With "The End of Mr. Y, "Scarlett Thomas brings us another fast-paced mix of popular culture, love, mystery, and irresistible philosophical adventure.