《明史·列传·卷三十六》
回到榆木川时，皇上驾崩。
还次榆木川，帝崩。
The emperor died when they arrived at Yumu Chuan.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 还次榆木川，帝崩。 [/INST] The emperor died when they arrived at Yumu Chuan.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 还次榆木川，帝崩。
user
The emperor died when they arrived at Yumu Chuan.
assistant