The attendant of Marquis of Wuwei, upon hearing the order, scurried off to find Physician Sun, moving with great haste.
Physician Sun quickly arrived at the Marquis of Wuwei's residence, panting with his medicine chest in tow. Upon seeing him, the Marquis of Wuwei immediately said, "Take the fastest horse from my stables and go to the Eastern Palace to examine the Crown Prince right away."
Physician Sun agreed and someone brought the Marquis' swift horse; Physician Sun hurriedly mounted and galloped off to the Eastern Palace.
Little Zhongzi, seeing Physician Sun make a swift departure, also mounted a horse and hastily returned to the Eastern Palace.
The Marquis of Wuwei originally had plans to go out, but he cancelled them, following behind Little Zhongzi, he too rode off to the Eastern Palace.