In the hospital bed in the school infirmary, Harry Potter was stripped down to only a pair of underwear.

Now his bare skin was red, as if he had just come out of the sauna.

Zhang Xu touched Harry's forehead and limbs, and it felt like he had a high fever.

And the scar on his left hand reappeared, only much better than before, only a little more serious than a normal scratch.

Neville, who had carried Harry with him, was fine.

Zhang Xu didn't have to think about it to know that the Gu puppet had already failed due to overload, and it was only Voldemort who caused this to happen.

Madam Pomfrey tried to heal Harry's wound first, but no magic or potions worked.

Ron and Neville made a bucket of ice with magic as Zhang Xu had instructed, and poured it on Harry's body to cool him down.

The other two students who had carried Harry with them had been sent by Professor McGonagall to Dumbledore and Snape.

Madam Pomfrey's initial diagnosis revealed that Harry was in a serious magical riot.

If a person's magic is compared to a car, then when Filch was a squib in the past, his magic was a car that stood still.

Normally, wizards, their magic is a car that climbs slowly at 20 kilometers per hour during rush hour.

When a wizard uses magic, the magic in him is like a car that stomps the gas pedal low on the highway.

As for the wizards who rioted in magic, the magic in their bodies was racing on Mt. Akina, and without an old driver, it was easy to crash and die.

And looking at Harry's steaming situation now, it is estimated that this car is racing on the winding road of Tianmen Mountain, which is more dangerous than Qiuming Mountain.

Due to the magic in Harry's body, which interfered with the effect of spells and potions on his body, Madam Pomfrey didn't have a good solution for a while.

And Zhang Xu's treasure bag was mostly wound medicine, blood tonic potion and poison, which had no effect at this time.

Soon, Professor McGonagall was informed that neither Dumbledore nor Snape were at Hogwarts.

Professor McGonagall had to call all the professors who were still useful at Hogwarts, and everyone worked together.

Zhang Xu couldn't help with this kind of thing, so he could only try his best to cool down Harry with Ron and Neville. Otherwise, if Harry's fever doesn't go away, it won't be long before he becomes a double yellow omelette man.

Telling Ron and Neville that Harry's work can't stop, Zhang Xu picked up Harry's glasses from the bedside table and walked out of the hospital room.

In the corridor, seeing that there was no one around, Zhang Xu put on the pair of glasses.

"Don't spit durian skin when you eat durian, don't spit durian skin if you don't eat durian." Zhang Xu whispered to Harry's glasses.

"Ding!" The sound of the glasses came directly into Zhang Xu's ears from the glasses arm, "The key confirms, turn on the highest authority of the system." ”

"Is that you, Zhang? Can I help you? Deng (gan) cloth (dao) Li (fu) in the glasses asked.

"Emergency, Professor." Zhang Xu said to the old man in the glasses, "The magic in Harry's body suddenly rioted severely, and the general treatment had no effect, do you have any good solutions?" ”

Then Zhang Xu told Grandpa Gandalf about Harry's situation.

"Please wait a moment and I'll look it up." Old Gandalf said.

Harry's old grandfather's glasses were quietly taken away by Dumbledore and upgraded a few times without his knowledge.

It was not difficult for Dumbledore to sneak into Harry's dormitory in the dead of night, take his glasses and patch them up to upgrade while everyone in the dormitory was asleep, and then quietly put them back.

Perhaps Dumbledore really wanted to leave a plug-in for future Hogwarts students, and he had upgraded this pair of old grandfather glasses more and more in recent years.

This includes storing a large number of magic books in the glasses.

Zhang Xu helped to get a set of classification search and search engine solutions.

Zhang Xu has always wanted to learn this stored magic, so that he can carry the resources of T calculation with him in the future, but unfortunately his current knowledge reserve is not enough.

A few seconds later, old man Gandalf had the results.

However, several results were not ideal, some spells required a Dumbledore-level wizard to use, and some potions took too long to refine, and Harry was estimated to have burned when the potions were ready.

After eliminating the methods that can't be used now, there is only one viable solution, and that is the blood of a unicorn that can prolong life and drive away all negative effects.

However, the blood of unicorns carries a curse, and whoever drinks it is unlucky, and no one will hunt unicorns to collect blood.

Therefore, after listening to Zhang Xu's method, the professors in the ward couldn't make up their minds for a while.

Although Zhang Xu has a theoretical way to avoid the curse, he can't guarantee that he can do it foolproof without trying.

Suddenly, Zhang Xu remembered that he had heard before that there had been an example in England where someone had taken the blood of a unicorn without being cursed.

Zhang Xu didn't care about taking the secret road, so he directly stepped on the flying sword and flew to the second floor of the screaming shack at the fastest speed, and then made a phone call.

Ten minutes later, Zhang Xu flew back with reliable news.

"There's a way." Zhang Xu said to the professors, "I asked how you can avoid the curse after taking the blood of a unicorn. This method has been used for many years. ”

"First of all, someone has to convince a unicorn to voluntarily give its blood to the other party."

"Then draw the right amount of blood from the unicorn with a syringe."

"Then the unicorn's blood is fed to those who need it by nasogastric feeding."

This method is basically the same as what Zhang Xu thought, but some specific operations are more in line with the actual situation.

However, convincing a unicorn to donate blood is not an easy task.

With the urine sex of unicorns, it can only be useful if it is a witch with certain conditions.

And the female professors in the ward......

In the end, Professor Ba Buling personally stepped out, Zhang Xu lent her a flying broomstick, and then skillfully walked to the medicine cabinet in the school doctor's room and took out a bottle of bone-setting medicine, and took off her shoes and silently medicated her red and swollen feet.

Professor McGonagall, Madam Pomfrey, Scaret and others began to prepare equipment for feeding Harness with nasogastric feeding.

Some of the medical appliances in the school infirmary could be used, while those that were not were made by Professor McGonagall using Transfiguration under the guidance of Hermione, who had been summoned impromptuly.

Fortunately, there is a Hermione from a doctor's family to help, and she has been familiar with medical care since she was a child, so that everyone has taken a lot of detours.

Half an hour later, Professor Barblin brought back a bottle of silvery-white unicorn blood that shimmered slightly.