Eduard Castellarnau (Barcelona, 1957) is a physician by profession and the author of the short story collection Els Contes de la nit (1993) and several novels, including Tarda d’hivern (1994), Laberint Perdut (1996), L’enigma de la llibreria (1999), and La ruta del silenci (2002), which won both the Leandre Colomer Prize for Historical Novel of Catalonia (2001) and the Catalonia Private Investigators Association Award (2002) for a published novel. His other works include A l’altra banda de la solitud (2006) and Les incertituds de la nit (2011). His books have been translated into multiple languages, and many of his texts have appeared in various magazines. His latest novel, Lunas de diciembre, was published by Milenio.