Hector did not stay long with Nicolas Flamel. Having consumed a significant amount of soul energy, Mr. Flamel needed time to recover and could not spare the energy to take care of him. Mr. Flamel's memories were also in the midst of intensive recovery. His mind was packed with over six hundred years of memories, most of which had been tampered with, secondarily created, and heavily blurred by that mysterious force. Fortunately, before leaving, Grandpa had given Hector a copy of his own memory to use as a reference. This memory was stored by Nicolas Flamel in a Pensieve—naturally, the great alchemical master Nicolas Flamel possessed such a magical object; the one Dumbledore owned had actually been a Christmas gift from Nicolas Flamel. Mr. Flamel needed time, and it was obvious that Hector could not be of much help here.
However, as they left the room, Mr. Flamel warned Hector with a heavy heart, "This is a truly terrifying conspiracy, and it targets not only me, but you, and even the entire world."
Hector completely agreed with Mr. Flamel's words. He believed that one thing was now clear: there existed a powerful and mysterious force in this world that did not want people to leave, and did not even want people inside this world to know that a different world existed outside. Therefore, it tried its best to erase the existence of anyone who learned this news. This force seemed dedicated to forming a barrier to cut off the paths leading to the outside world.
Chapter 83