I am looking for a book series that upon completion will leave a feeling of emptiness, as if I'm saying goodbye to a good old friend, when you realize the good old days were left behind. It's a shitty feeling that only comes after something great, something that left a mark on you.
They were all originally published in Spanish as well.
La sombra del viento, 2001
El juego del ángel, 2008
El prisionero del cielo, 2011
El laberinto de los espíritus, 2016
La ciudad de vapor, 2021