After dinner, Cynthia sat on the couch and after making herself a cup of tea, she took out her two-way mirror.

"Barty!" She lit up the mirror and called out to little Barty.

As soon as the words fell, little Barty's smiling face appeared on the mirror. "Thea! How did you feel today, and did the class go well?! ”

"I feel pretty good!" Cynthia said with a smile.

"It seems that Professor Blake's first class went pretty well."

"Where are you now? At home or at Grimmauld Place? ”

"Oh Merlin! I forgot to tell you, Thea. After you went to school, I lived in Grimmauld Place. ”

"Show me Gru and Jamie! How are the two of them, are they crying? Cynthia asked excitedly.

Little Barty turned the mirror towards the two sleeping babies. "Unfortunately, the two of them just fell asleep!"

"It's a step too late!" Cynthia stared at her two children with a happy smile on her face.

A knock on the door interrupted the conversation, "Barty, let's talk again in the evening!" I made an appointment with a few students! ”

"Well, let's go!"

Cynthia put away her two-way mirror, walked over to her desk, and waved her hand, and the office door opened.

It was none other than Bill Weasley and Susan Travers.

"Professor Black! Good evening! ”

"You two have good talent in formation. I hope you can go a little deeper in the formation, so let you come to me. Cynthia said with a smile.

"Let me answer Bill's question today! The power of a formation depends on the drawing material and the most basic mana output. ”

"If you want to increase its power again on the basis of its original foundation, there are two ways, one is to find more suitable materials, and the other is to improve the formation. This is the same as a potion, if you want to increase your power, you must first learn the formation diagram, material properties and formation effects thoroughly. ”

"Improving the formation diagram is the more difficult one, while the material is easier. Because the best material for drawing the formation is the blood of the people who set up the formation. ”

"You two should practice magic output tonight, lay a good foundation, and it will be easier to learn later. Take out your wand and continue to output mana, drawing circles until you run out of mana. ”

After watching the two of them get their practice on track, Cynthia took out the cauldron and brewed a mana supplement for the two.

After Cynthia's two potions were brewed, Bill and Susan's magic ran out. The two of them sat on the carpet sweating and panting.

"It's a good performance, starting today, every Monday at 8 pm, practice in my office, and when your magic can be completely stable and continuous, we will move on to the next step." Cynthia handed over two bottles of magic supplements.

"That's it for today! You can go back, it's curfew time coming. ”

"Good night, Professor Black!"

After the two left, Cynthia put on her robe and headed downstairs. She made a beeline for the cellar and stopped at the door of the Potions office.

"Password." Medusa's cold voice rang out at the door.

"Password? Sorry, I have something to do with Professor Snape. Cynthia shook her head, indicating that she didn't know the password.

After a long time, the stone door suddenly opened, and Severus stood in the doorway, looking at Cynthia with some surprise.

"Professor Snape, didn't you say in the morning that you could find any potions you needed? That's why I ......" Cynthia was startled by him.

“…… Come on in. After a moment of silence, Severus leaned sideways to make way for Cynthia.

Cynthia walked into Severus's office and shivered when she found it so cold that it was so cold. She didn't expect Severus's office to be even colder and damper than the Slytherin common room.

Severus, noticing Cynthia's trembling, waved his hand and lit the fireplace.

Cynthia suddenly felt comfortable, she looked at the undecorated office in front of her, cleared her throat, turned to look at Severus and said, "Professor Snape, I need a batch of magic supplements, and if I cook it alone, I can't keep up with the speed of consumption, so I need your help." ”

“…… OK. Again, a concise two-word answer.

"Then I'll go back first......" Cynthia felt a little embarrassed.

“…… Wait, Professor Black. Cynthia, who was about to turn away, was stopped by Severus.

"Anything else? Professor Snape? Cynthia turned and looked at the man behind her, confused.

“…… I...... There's something wrong with the Everfire Array in my workshop, and I'd like you to redraw one for me. ”

“…… Is there a material? Cynthia was stunned for a moment before she reacted.

"Yes, you come with me." Severus turned and walked inside.

Cynthia followed him to the potions-making room in the room, where three cauldrons were bubbling on the table, and two large cabinets filled with bottles and jars.

"Magic supplements?!" Cynthia sniffed and said in surprise.

“…… I know...... I know you're going to be using a magic supplement, so I'm already making it...... You can pick it up later. Severus's ears were a little hot, and he was glad that the studio was dimly lit and Cynthia didn't notice his embarrassment.

"Thank you so much, Professor Snape! I'll draw a new Eternal Fire Array for you, I'll need dragon blood and dragon scale powder. ”

Severus walked over to the side of the cabinet, picked out two of the jars, and handed them to Cynthia.

Cynthia took the two bottles, pulled out her wand and began drawing. An hour later, three new Eternal Fire Arrays appeared on Severus' workbench.

He handed Cynthia a bottle of magic supplements, then pulled out a small box and placed it on the table.

"Is this a magic supplement? Then I'll take it! Cynthia looked at the box curiously, only to feel a little familiar.

“…… I'll send you up, this one is heavier......" He put on his robe and looked at Cynthia quietly.

“…… Then bother you. Cynthia heard the firmness in his words and did not refuse.

The two of them walked silently in the empty hallway, Cynthia wanted to say something to ease the atmosphere, but she couldn't think of anything to say, so she walked all the way to her office door without saying a word.

Cynthia was about to open the door, but it opened on its own.

"Where have you been so late, Thea?" Barty Jr. pushed open the door and grabbed Cynthia's hand.

"Barty?! What are you doing here! Cynthia said in surprise.

"I miss you, Thea......" As soon as she finished speaking, Barty Jr. noticed Severus with a gloomy face behind Cynthia.

"Why are you here?!" Barty Jr. asked, holding Cynthia behind him.

"Hey, Barty. Professor Snape helped me make a batch of Magic Palliatives and brought them for me. Cynthia squeezed little Barty's hand in embarrassment.

Barty Jr. didn't speak, took the box from Severus, pulled Cynthia back to the office, took out all the magic palliatives, and placed them on the desk.

"You wait for me, Thea, I'll go and return the box." He touched Cynthia's blonde hair.

"Remember to say thank you for helping me." Cynthia nodded, and put the mana palliative bottle by bottle into the cupboard.