Lyndsay Faye is the internationally bestselling, Edgar Award-nominated author of the Sherlock Holmes pastiche Dust and Shadow, the Timothy Wilde trilogy (translated into fourteen languages), and Jane Steele. Her stories have appeared in Strand Magazine, Best American Mystery Stories 2010, and are collected in The Whole Art of Detection: Lost Mysteries of Sherlock Holmes. She guest writes for New Paradigm’s Eisner Award-nominated Watson and Holmes comic.

James Lovegrove is the New York Times bestselling author of The Age of Odin. He has been short-listed for many awards including the Arthur C. Clarke Award, the John W. Campbell Memorial Award, and the Scribe Award. He won the Seiun Award for Best Foreign Language Short Story in 2011, and the Dragon Award in 2020 for Firefly: The Ghost Machine. He has written many acclaimed Sherlock Holmes novels, including Sherlock Holmes and the Christmas Demon. As well as writing books, he reviews fiction for the Financial Times. He lives in Eastbourne in the UK.