It looks like you started to type the title of Harry Potter and the Deathly Hallows in Spanish: "Harry Potter y las Reliquias de la Muerte" — likely followed by "Parte 1" or "Parte 2" .
He never sold the book. He kept it under the counter, and on quiet afternoons, he swore he could hear pages turning by themselves — in a language that sounded almost like Spanish, but not quite human.
If you’d like an related to that title, here’s one: Title: Harry Potter y las Reliquias de la Muerte - El Error del Librero