The last volume of the trilogy, The Cemetery of Forgotten Books, which can be read separately and in any order. In The Prisoner of Heaven, events occur between the years 50/60 of a sad and rainy Barcelona, back in the old bookshop Sempere and Sons., It was Christmas Eve and sales had been very bad, it had been some time that the Lord Sempere spent hours and hours with sues accounting books trying to solve the financial problems of the bookstore. It was another ordinary day, rainy and motionless, and Lord Sempere desperate with the situation of the bookstore had an idea that could perhaps save Christmas that year, went out and left Daniel alone taking care of the bookstore. Everything was perfectly normal, until a strange character appears in front of the bookstore, Daniel had never seen this man before you came and walked through the bookstore, to a stop in front of a bookshelf rare and very expensive, seeing that the person looking at the bookstore is not the visitor left a copy of "the Count of Monte Cristo" with a dedication somewhat suspicious and asked that he gave it to Fermin''s friend and employee of the bookstore where that ends up leaving the recipient with a flea ear. The outcome of this story is extremely beautiful, takes us on an unforgettable journey, going through different situations, a history of hatred, anger, love and friendship, where the facts of the past begin to haunt the one who was just a child when it happened. Discover the truth about the death of his mother, Daniel Sempere freak out and start to search for traces of the man who took her life. Realizing that this was affecting his life he gives up looking for the killer. On the wedding day of your best friend, Fermin, Daniel decides to surprise you, but the surprise turns out to Daniel, who realizes that story, your story is not over yet, is just starting.