Lars Kepler is a pen name used by Alexandra Coelho Ahndoril and Alexander Ahndoril, both critically recognized authors. Alexander Ahndoril's work The Director, about Ingmar Bergman, was shortlisted for the Independent Foreign Fiction Award. Alexandra Coelho Ahndoril's debut novel Stjarneborg (Castle of Stars) has been translated into various languages. The Fire Witness is the third installment in Detective Inspector Joona Linna's series. The author is a Swedish citizen.