Godson and Godfather!
Felix stood quietly on the sidelines, as his mind worked at high speed.
Dumbledore's words were obviously directing, talking about Harry Potter and Sirius Black.
There is still such a layer of relationship between the two, which he never expected.
And Sirius is accused as Voldemort's minion, who betrayed his best friend, that is, Harry's father.
Felix thought of an organization that was active in wartime - the Order of the Phoenix. A secret organization founded by Dumbledore to resist Voldemort, it aided the Ministry of Magic in the war period against Voldemort and the Death Eaters.
The Order of the Phoenix is not well known, and since 1981, Voldemort disappeared, the war also ended after that. So it was disbanded.
Felix knew the name because he knew Professor Tofty of the Wizarding Examinations Authority - an expert in ancient runes - and Felix used to visit him.
Professor Tofty had mentioned the organization in casual conversation, praising the valour and fearlessness of the members of the Order of the Phoenix, though he did not specify the name.
But Felix speculated that at least Harry's parents, Sirius, and that Peter, should be members of the Order of the Phoenix.
No wonder ... no wonder Dumbledore became so angry.
Best friends at school, close war buddies after graduation, as well as the bonds of kinship, forged because of Harry's birth, this should have been an unbreakable bond of friendship.
But Sirius Black chose to betray.
And what role does Snape play? With the information Felix found out when he was at school, after the war, Snape was accused of being a Death Eater, but Dumbledore vouched for him in the name of being undercover and did not let him face the Wizengamot trial.
Otherwise, Hogwarts would not have such a poisonous professor.
'So, Severus would also have been a member of the Order of the Phoenix.'
Felix didn't know much about his House Head's experiences when he was at school, but he did at least know that the relationship between Snape and the Potters was complicated: he was an old friend of Harry's mother - perhaps with a touch of adoration - but a nemesis of Harry's father.
They would not have fought whenever they had met together, would they?
...
"Felix," Dumbledore turned his head, his azure gaze settled on him through the lenses, "you're a professor at the school, and I don't want to see you doing the wrong thing."
Felix blinked, "Headmaster, I don't need you to tell me, I will also put the safety of my students first. Besides, I have a good relationship with Mr. Potter and don't want to see anything happen to him, and I trained him over the summer."
"Ah, I've heard Filius mention this," Dumbledore said, "he said you've done quite a bit of research on accidental magic bursts of young wizards ..."
"Not really a research, just experienced."
Dumbledore's expression became gentle, not as sharp and intense as it had been at first.
He said in a tone of discussing magic: "Can you tell us, Felix? Please forgive this old man's insatiable curiosity."
"It goes back to two weeks ago ... when I happened to run into Potter in Diagon Alley and noticed the active magic from him, I judged that he had recently experienced an accidental magic burst, and after asking about it, that was indeed the case."
"You are amazingly perceptive about magic, Felix."
"Thank you, Professor Dumbledore. After that, I ..."
"I do. ..."
The tense mood in the office gradually eased.
Dumbledore reverted to a gentle old man, discussing interestedly with Felix the effects of the accidental magic burst and giving his insights without mincing words.
"Headmaster Dumbledore, I was thinking about whether it is possible to artificially change the level of activity of one's magic, which would bring obvious benefits."
"That is an interesting thought, but it must be done with caution, Felix, any study of magic itself could easily result in a serious accident."
As he walked out of the Headmaster's office, Felix had two books in his hands.
This is the books Nicolas Flamel entrusted to Dumbledore to forward, which is one of the drawbacks of communication between the two through photographs, Nicolas Flamel lived in the safe house all year round, rarely went out, and the owl also simply can not find him.
And at the moment Felix and his acquaintance, obviously not to the extent of paying a visit to him.
He is not surprised, feelings are accumulated little by little, and he is not a Gold-Galleon, so he will not be able to gain the trust and liking of everyone at once.
He tucked the two books into the ring and returned to his office. As he sat on the couch, he pondered the words of the portrait of Headmaster Phineas Black.
12 Grimmauld Place, the location of the old Black family house.
Although there is only such a name without any subsidiary information, it is enough for Felix.
This is clearly a common naming pattern for locations, and he could start with that.
After circling a general area, all that remained is a little probing. Given time, he could dig out this hidden abode.
It is not difficult, Phineas Black's portrait said he could do it, and Felix thought so too.
The difficulty lies in cracking the enchantment on there.
For these pure-blooded families, all kinds of complex and even unimaginable protective measures must have been imposed on their old mansion, and the whole process of warding can often last for tens of centuries and generations to complete.
Moreover, if the old mansion is imposed with the Fidelius Charm, then there is really nothing he can do.
But according to Phineas Black, he also has a portrait in the old Black mansion, which means he knows enough about the old mansion, in order to let Felix rescue the last bloodline of the Black family, he is not going to let Felix do futile work.
Besides, it's not a safe house, and it's too much trouble to use the Fidelius Charm.
Another key clue provided by Headmaster Phineas Black is the necessity of using 'something unique to the noble Black family', what could that be?
He already had some guesses.
In the Thinking Room.
Felix sat on the sofa, he reached out and beckoned a thick book, the 'Pure-Blood Directory' written by Cantankerus Nott (presumed), which contained information about the so-called 'Sacred Twenty-Eight'.
He flipped to the section about the Black family, briskly skimmed through a series of lists of family members and their deeds.
His eyes fell on the Black family crest, which has a French phrase - 'Always Pure'.
He smiled.
For the noble, ever-pure Black family, what could be qualified as exclusive?
Only the bloodline.
All he had to do is to get Sirius Black's blood, and he could enter the old Black family house and get a peek at the hidden books within ...
Felix came out of the thinking room and looked at the night sky of Hogwarts, his eyes blending into the darkness.
Sirius, where the hell are you?