Me, Watson and Jacqueline's closet

Isolde, Iso for her friends, likes to read a lot and wants to study aeronautics although there's still a long way before she gets into the university. She and her family have recently moved from the Eixample neighborhood to Barceloneta and the first friend she has made is Santi, the bookkeeper whom she visits every friday after school. The other friend will be Watson, a boy also a bit peculiar. Together they will try to return some old photographs that Isolde found in an old book of Santi's in an envelope where someone had written: "To Carmeta". The research for this Carmeta will take Iso and Watson to discover some secrets of the neighborhood, enter to occupied houses and discover what's in the Jacqueline's closet!