On the day of the Dragon Boat Festival White Snake wished to stay home so as to avoid the Ay Tsao, used for protection from spirits, hanging on the doors of people's houses. Her husband prepared, according to Fa Hai's instruction, some realgarwine, as this was a tradition during the Dragon boat festival. White Snake, thinking her magic would protect her from the effects of the realgar wine accepted a cup. After she drank the wine she became very ill and was barely able to get to her bed.When her husband came to her side, he found not his wife but a huge white snake. So great was Xu Xian's shock that he fell to the floor dead.

　　端午节当天，白蛇待加家里以避开人们挂在门上驱邪的艾草，而许仙则依照法海的建议准备了大家在端午节时都会喝的雄黄酒。白蛇自认魔力可以抵挡雄黄酒对她的影响，因此喝了一杯。但是在她喝下那杯酒之後，她却变得精疲力竭，几乎走不到床上。当许仙回到白蛇身边，看到的不是自己美丽的妻子， 而是一只巨大的白蛇，许仙震惊不已，从楼梯上摔死了。