Although he reacted quickly, it was still too slow. The blade flashed past his right knee, and his lower leg fell to the ground at once, followed by a headfirst plunge.,"It's true, I really don't know," the old man trembled, "I only know it's related to a huge secret, but what exactly it is, I really don't know.",This is clearly making things more difficult for themselves, which doesn't make sense!。