S.L. Grey is a highly regarded collaborative pen name used by the pair of popular writers, Louis Greenberg and Sarah Lotz. Both authors have achieved significant success in their writing careers, particularly in the genres of science fiction, mystery, fantasy, thriller, horror, suspense, and literature & fiction. One of their most popular book series written under the S.L. Grey name is the Downside series.
Sarah Lotz, a British national, is not only a novelist but also a screenwriter and a known zombie enthusiast. She has a reputation for writing thriller and crime fiction stories, both under her own name and as part of her collaborative work. In addition to her work as S.L. Grey, Lotz, together with her daughter Savannah Lotz, writes the Deadlands series of zombie novels for young adults under the name Lily Herne.
Louis Greenberg, who hails from Johannesburg, is a fiction writer and editor. He has a Master's degree in vampire fiction and a doctorate in post-religious apocalyptic fiction. Greenberg brings a wealth of knowledge and expertise to the S.L. Grey collaboration, having worked as a bookseller for several years and with a deep understanding of various fiction genres.