Tonks could now say with certainty that Catherine had done what she had just been going through, and that it was probably done when she was knocked unconscious, but she didn't know exactly how the redhead girl did it, and she didn't have time to figure it out.

Tonks had a vague suspicion that Catherine was deliberately trying to play a game with her, deliberately trying to make her lose it, and she suspected that the red-haired girl probably had planned to continue traveling abroad alone from the beginning, and had not even thought about bringing her own burden.

Tonks didn't know if her suspicions were right, because she didn't have the slightest evidence, and the only way to prove it was to wait until tomorrow without making any effort.

As an Auror, even though Tonks has been in office for less than half a year, it is impossible for her to just let an underage wizard sneak out of the UK under her nose, even if she keeps up, it is likely that she will only drag the other party down.

Tonks was determined to find Catherine anyway.

Tonks begins to recall every detail of her time with Catherine, and finally she remembers the house-elf who took the red-haired girl back to 17 Spider's Tail Lane, but she can't remember Dobby's name, but then she thinks of another house-elf who is related to Catherine, Kechelli.

Tonks immediately apparitions to his cousin's sanatorium, Sirius, knowing what had happened, immediately gave orders to Kechelli, and since Catherine did not give the contrary order, Tonks was brought to the red-haired girl without incident.

"I was surprised by your performance." As soon as Tonks appeared in front of Catherine, he heard her speak to herself in a tone of surprise that had never been seen before.

"To be honest, I really don't want to take you abroad for training, the reason why I'm willing to waste time playing games with you is actually to understand your personality and habits, so as to set up a fantasy world specifically for you, but I really didn't expect that it couldn't trap you until midnight."

"Obviously. Your mother's pride in Slytherin has not been worn away by ordinary life, so it seems that the reason why Old Lady Walburga 'kidnapped' you to join the Black family is not just because of your 'talent' or your 'offspring'. ”

"What do you mean?" Tonks was completely confused, and the amount of information revealed in Catherine's words made her mind crash directly.

"I'm not going to explain it to you, you'll have to figure it out yourself, it's my second test for you." Catherine finished speaking solemnly before revealing a gentle smile. "But I have to congratulate you now, your performance has been recognized by me, so I will no longer deliberately try to get rid of you."

"However, your strength still does not satisfy me, you must know that as a Slytherin, the selection criteria for companions are not ordinarily harsh, especially for someone like me who has long set his sights on the target, and will not give his back to a weak person to protect."

"So. Keep up the good work! Catherine smiled brightly, and then reached out and motioned for Tonks to look in the other direction.

"Now, let me introduce you to our guide, Tina, a merfolk from Hogwarts." The small figure that had been floating in front of a map with his back to Tonks turned his head. Raising a small gray hand and waving it as a greeting, he shook his long dark green hair and continued to study the map of the seabed.

"Next, you need to understand where we are at the moment: our first destination after leaving the UK. It's the Merfolk Empire in the center of the Atlantic, and the vehicle we're riding in now is an Octopus Submarine, a relic of the Empress Ruona, who founded the Merfolk Empire. Because of the coincidence, it is now mine. ”

After a brief introduction, Catherine bent down to pick up a stack of clothes, and Tonks realized that there was a fifth figure in the circular cabin, and then she noticed that it was Dobby, the house-elf of the red-haired girl.

"Since the beginning of the year, I have been preparing for this overseas training, and I would have set off the night before yesterday, but because of you, I had to delay the departure time until now, and temporarily added these two sets of combat uniforms." Catherine was displeased and shoved the stack of clothes into Tonks's arms.

"Now, please go and put them on at once, we have to make the initial adjustments before we leave the UK, and you know that once we leave the UK, many things will become extremely inconvenient."

Tonks nodded stunned, seeing Catherine's gaze suddenly sharpened, he hurriedly hugged his clothes and turned around and ran into the back cabin to try them on.

"Kecheli, help me tell Sirius that since Miss Tonks can think of finding me with the help of your powers, then I will fulfill my promise to Professor Dumbledore to take her on a trip abroad, and teach her dutifully during the journey."

Kecheli was about to leave, but was stopped by Catherine.

"Wait a minute, Kechelli," Catherine pursed her lips and hesitated for a moment before crouching down and whispering in the ear of the elderly house-elf, "privately help me bring a message to Remus, remember, this is not to be known to anyone else, including the portrait." ”

"Yes, Miss Catherine!" Kecheli nodded solemnly.

"If Miss Tonks returns home early, please don't blame her, for I will never let any weak person help me defend against danger, not to mention that as the patriarch of the Black family, it is my duty to protect the members of the family, even if I am only a temporary agent."

"Miss Catherine! You ......" Kecheli looked up at the red-haired girl in shock.

"Don't worry too much, Kecheli." Catherine smiled and patted the other's head, "Bloody rain was the most common scenery in my childhood, not to mention, I have never been a reckless Gryffindor. ”

Cutcelli blinked his huge eyes, his brow furrowed slightly, he bowed deeply, snapped his fingers, and disappeared from Catherine's presence.

Catherine lowered her eyes and pondered for a moment before she stood up and looked at the other house-elf.

"Dobby, during my time away from England, I want you to stay around Harry as much as possible until he leaves the Dursleys, and of course you have to go back to 17 Spider Tail Lane to cook for the professor during mealtime, and you have to watch him finish eating, understand?"

"Yes, Miss Catherine!" Dobby nodded earnestly, then asked, "Miss Catherine, do you have anything you need me to convey to Harry? Mr. Potter and Professor Snape? ”

"Tell Harry that when I get back home, he will be examined, and if he doesn't want to be beaten, it's best to take what I've told him and review it properly." Catherine frowned, and suddenly took a letter out of her pocket, "Give it to Mrs. Dursley, and ask her to do as she can, and as for all the losses incurred during this time, I will compensate for them when I return home." ”

"Yes, Miss Catherine!" Dobby took the letter and carefully put it away.

"Also, when I leave England, help me to tell the professor a sentence," said Catherine, opening her mouth for a moment before she continued, "I will certainly fulfill the agreement, in whatever way and in whatever form." ”

After speaking, the red-haired girl suddenly looked up at the east, her eyes showed an unusually gentle gaze, the corners of her mouth were slightly raised, and her face was full of happiness.

But in the blink of an eye, Catherine was back to her old self again, as if that moment was just a hallucination of the people around her, and when she looked down at herself, Dobby was immediately screaming in terror.

"Dobby will get the job done, Miss Catherine!" After shouting, the house-elf immediately snapped his fingers and disappeared from the red-haired girl's eyes.

Catherine raised an eyebrow, then turned to look at the rear cabin, where Tonks, who had already changed his clothes, hurriedly approached.

Catherine walked around Tonks a few times, waved her wand and made a few changes to the suit she was wearing, and immediately asked Tina for directions in merfolk language, and then the massive octopus submarine began to move its eight giant tentacles, leaving Bristel Bay at a swift speed and swimming towards the center of the Atlantic.

Tonks curiously leaned over the pale blue crystal lookout window and watched everything in the water, it was a strange experience for her, she never imagined that Catherine would travel abroad in such a way.

As a wizard who has been on land since birth, and despite her ability to explore the underwater world, the Black Lagoon at Hogwarts is just a lake, it is still surrounded by land, and Bristel Bay is directly connected to the Atlantic Ocean.

Although it was the middle of the night and visibility was unusually low, when the octopus submarine had descended to a sufficient depth, the surface of its bulging cabin suddenly brightened, and the surrounding fish were immediately attracted to the oversized light bulb.

Tonks immediately screamed like a little girl, and Catherine walked to the crystal lookout window to enjoy the never-before-seen beauty, and wondered if the fish sensed their thoughts, and they gathered more and more, and there was a tendency to "besiege" the octopus submarine.

Tonks couldn't help but panic when she saw this, but before she could do anything, the bustling schools of fish suddenly dispersed, and then she saw a huge curtain of light.

You can't see the top of the light curtain, you can't see the bottom of the curtain, you can't see the edge at the left and right ends, and there is no color, but because it is in the water at this time, it reflects a faint light.

"Could this be the defensive barrier of the British Isles laid out by Merlin?"

"It is truly the most outstanding achievement in the history of magic, and it has stood for thousands of years without a single accident." (To be continued......)

PS: Maybe it's because I don't write for a living.,So when I created this fanfiction,,Focus more on quality,Rather than update speed.,For this reason, please forgive some readers for the inconvenience (??.?? )