"I didn't lie to you, I really went to survey the terrain, you see, I also drew a map."

As he spoke, he took out the map.

I saw that it was clearly marked, as if it was Hogwarts Castle.

Severus looked at the map, "With your memory ability and habit of moving your eyes and not using your hands, you should be able to remember everything after reading it once, why draw it?" ”

Yulanda twitched the corners of her mouth, "Severus, do you want to summarize it so brilliantly?" Well, I drew this map and sold it to first-graders like us. Hogwarts Castle is huge, and it's not uncommon for first year to get lost, and I've already inquired, Hogwarts only has markings in the hallways, maps are only available in the library, and they don't lend money. This map is just in time for some Hufflepuffs who can't find classrooms. They won't realize the problem until tomorrow morning, they don't have the time to go to the library to check the map, and it would be a shame not to take this opportunity to make a fortune. ”

Regulus asked curiously, "We have a class tomorrow morning, where do you have the time to sell maps?" ”

"I've said hello to the portraits on the doors of the common rooms of the various colleges, and tomorrow the portraits will sell my maps to every student when they go out, and I've put thirty copies of each of them. And I cast a spell on the map so that only the people who made the deal could see it, which meant that the map could only be shared by everyone. ”

Severus said with a faint sarcasm, "Your three years in Diagon Alley have really not been in vain. ”

Sure enough, the next day, Ulanda's map was sold for twenty Galleons, and some Gryffindor who didn't buy a map got lost in the castle, and they also encountered Peeves who like to play pranks and deliberately make trouble, and the ghosts like to point the way, some say it's in the second corridor, some say it's in the third corridor, and only Ulanda's map is the most correct in comparison.

Most of the first-graders found the portrait and bought one.

Over the course of two days, Urlanda's maps had earned a total of thirty-five Galleons.

The next day, Potions class.

The professor was Slyerjelin's headmaster, Horace•Slughorn, a fat, bald old man with bulging eyes and a silver beard as thick as a walrus.

"Children, potions can help you increase your prestige, brew glory, and even stop death, and I have prepared several potions to open your eyes, of course, just out of interest. Truth spitting, a colorless, tasteless elixir, forces the person who drinks it to tell the truth. Compound decoction can make you a different person, without any mistakes......"

Professor Slughorn said with a grunt.

It can be seen that everyone's interest has been aroused.

"Today, let's practice boiling scabies medicine, in pairs, according to what is written in the book, let's start doing it."

Severus and Yulanda were in a group, Regulus was dragged away by her cousin Narcissa, and looking at Narcissa's frowning face, she probably didn't want the grunt potion to stain her clothes.

This scabies potion has been brewed with Severus and Lily for a long time, and not only that, but Severus has even improved the details in the book to make the medicine more pure.

According to the old rules, Severus liked the process of cutting, grinding, and squeezing, while Ulanda enjoyed the boiling process even more.

The two worked together seamlessly.