Susana Vallejo (Madrid, 1968) is an author who works in PR/Communication in Barcelona, where she's lived since 1994. She has won numerous prizes in the fields of both young adult literature (she won the Edebé prize in 2011 for El espíritu del último verano and was a finalist for the Jaén Prize in 2007 for her Porta Coeli trilogy) and SF (she was a finalist for the Minotouro International SF and Fantasy Prize in 2008 for Switch in the Red and in 2013 for Volverás a Toledo). She is also author of the humorous essay/parenting book Madre de Dragones, humorous thrillers such as El móvil que guardaba en su interior el secreto de la chica de la camisa naranja, the mystery novel Calle Berlín, 109, and children's books such as Entre Dimensiones or Tres Amigos y un fantasma.