Fernando Alcalá studied English and now works as a secondary school teacher. He is the author of Ne obliviscaris and Tormenta de verano [Summer Storm] (Editorial Edelvives, 2010 and 2011), and was a finalist in the 1st HQÑ Competition with Carlos, Paula y Compañía [Carlos, Paula and Company] (Harper Collins Ibérica, 2013). He also translated Jane Austen's Sense and Sensibility (Editorial Teide, 2014), adapted to young audiences. However, he has by far the most fun when embodying half of Costa Alcalá, the pseudonym under which he has published the trilogy La Segunda Revolución [The Second Revolution] (Montena, 2017). Geòrgia Costa studied History and Archaeology and today can be found walking tourists through the Roman ruins of Tarragona. She has published as sole author the books 22 misterios de la Historia [22 Mysteries of History] and Monstruos del mundo [Monsters of the World] (Montena 2016 and 2017), and together as Costa Alcalá the trilogy La Segunda Revolución (Montena, 2017)