The calf swam around in front of everyone, chirping from time to time. Although Du Wu and the others did not understand the language of whales, they could still feel the joy of the calf.

The Whale King opened his mouth, spat out something, spit on the mirage's back, and then chirped a few times.

Du Wen saw that the thing spit out by the whale king was pale yellow in color, two feet square, and exuded a faint fragrance.

Du Wen was shocked: "This is ambergris, one or two ambergris is worth a thousand taels of gold." Such a large piece of ambergris is probably worth all the gold in a country's treasury to buy!"

The mirage demon Xiaobei said to Du Wu: "The whale king told me just now that this piece of ambergris is produced by their group of whales for hundreds of years, and it is all kept by the whale kings of the past generations. This thing is of little use to them, but it attracts the covetousness of humans. The wicked man in the fishskin coat just now came for this piece of ambergris. Just now he had decided that he really couldn't save the little whale, so he would exchange ambergris. Now that we have saved its child, it is willing to give us this piece of ambergris in return. ”

Du Wu said: "This can't be helped, if we accept it, wouldn't it be the same as the wicked man just now!"

Xiaobei translated for the whale king, and the whale king was so anxious that he chirped. Xiaobei said to Du Wu: "This is different, it is not of much use for the whale king to ask for this ambergris, if we are useful, he is willing to give it to us, otherwise, the wicked man will come back to find them." After the ambergris is given to us, the wicked man will not smell the ambergris, and will not fight them again. ”

Du Wu nodded and said to Du Wen: "Brother Wen, what is the use of this ambergris, can it help you practice medicine?"

Du Wen opened his mouth wide, couldn't close it for a long time, and it took a long time to move his chin and said: "Sister, you are too layman, this ambergris is a treasure, the princes and nobles of all countries are eager to take it, this thing takes a little ground into powder, and ignites it with other spices, it has the effect of calming the nerves and awakening the brain, and for those who do not sleep well, it has the miraculous effect of helping sleep." In addition, the aroma of this incense is the purest, without any peculiar smell, which is also the reason why the rich are sought after. More importantly, it is more useful for those who practice martial arts. Especially for the cultivation of spiritual power. When you are cultivating your spiritual power, lighting a little ambergris incense will allow you to keep the spiritual platform clear and avoid the risk of going mad. It has the divine effect of purifying the heart and upright the gods. ”

Hearing Du Wen say this, Du Wu understood. Not to mention anything else, this ambergris alone can be called a treasure for the help of spiritual power cultivation. Moreover, judging from the price of one or two ambergris can be worth a thousand taels of gold, this thing is also extremely precious. This group of whales has only produced such a piece in total for thousands of years, which shows how precious it is.

Originally, Du Wu didn't want to accept this ambergris, because it was too precious, but the whale king's attitude was very sincere, and he repeatedly begged them to accept it, and the mirage also said that this thing really had no effect on the whale group, and could only attract the harm of the wicked, so Du Wu accepted it. And according to the mirage, the ice spirit snow lotus and ambergris are put together, so that the aroma will not be lost, and the ambergris will not deteriorate.

Everyone said goodbye to the whales and continued on their way. When they were about to part, the whale king chirped at the mirage for a long time. The mirage told Du Wu that the Whale King was very grateful to everyone, and if there was anything in the sea that could be used for them, send a message to them, and they would definitely come to help.

Du Wu suddenly remembered that this time he had to fight against the enemy's naval army, maybe this group of whales could really help a lot. So he asked Becky if there was a way to contact the whales in the sea. Xiaobei told Du Wu that the whales can receive and send a kind of sound wave in the sea, which can be received within dozens of miles, and if there is something to find them in the future, Xiaobei naturally has a way to notify the whale group.

Du Wu was overjoyed, and then said goodbye to the whale king. The whale king and the little whale were reluctant, and swam dozens of miles behind Xiaobei before turning back.