《魏书·列传·卷二十一》
返回行至雁门，突发病去世。
还至雁门，暴疾卒。
Died of a sudden illness on the return journey at Yumen.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 还至雁门，暴疾卒。 [/INST] Died of a sudden illness on the return journey at Yumen.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 还至雁门，暴疾卒。
user
Died of a sudden illness on the return journey at Yumen.
assistant