After having reread the first book of His Dark Materials by Philip Pullman I gained much momentum and finished the whole trilogy within a week. Truly a fantastic story. Too bad that Lyra and Will had in the end to be separated from each other for the good of the future of humanity but I guess that was bound to happen considering events between worlds and the way they were supposed to overlap.The subtle knife gets broken (purposely) and there is no turning back, but the dust ceases to drift for no reason at all and all openings to other worlds are sealed off for the sake of keeping history under control.