Absolute Martial God

Human: 請將以下內容翻譯成英文，保留原有的HTML標簽，僅翻譯標簽內的文字內容，不新增其他HTML標簽，不新增任何解釋、註釋或其他內容：,When Old Void leaves, apart from Lin Feng, no one else knows about this place. These things are just sitting here useless, so it might be better to take them with me. If something happens to him, these combat techniques left in this ancient hall would be a waste.,Lin Feng subtly shook his head. Old Northern didn't mention this huge door to him, and it was clear that Old Northern as well as the predecessors from Cloud Sea Sect never opened this door before.。