Grindelwald perhaps truly did not deceive Dumbledore, but he must have deceived some young wizard with a face full of shock, looking at him as if he were something dirty.
Well done, Grindelwald!
What secret contact with Dumbledore, just notifying Dumbledore, after all, this is Dumbledore's school, it was all a lie to placate the young wizard!
The truth that comes from this founder's mouth is even less than the truth from Tom's mouth!
"No wonder you would come to females' bathroom to intercept me in the middle of the night! Turns out you wanted to catch me and show off to Dumbledore!" Ian realized he had been tricked by the current Professor of Defense Against the Dark Arts.
He couldn't understand.
How could someone be so insidiously cunning!
"No, this was to give our principal the chance for redemption." Grindelwald rebutted Ian's claim, though his words did not hide the fact that he was indeed showing off.
How could this not be showing off?
Ian bet if he now gave Grindelwald a tail, that tail would definitely be wagging extremely fiercely, even more eagerly than a little eaglet leading the Imperial Army!
As someone who knows the past between the two and has seen that memory, the young wizard Ian could guess the reason; after all, their parting ways started from Ariana's death.
This might not just be Dumbledore's emotional knot, but also Grindelwald's unresolved frustration.
"What Gellert said... is it true?" Albus Dumbledore heard Ian and Grindelwald's conversation, and his somewhat swollen eyes suddenly became extremely uncertain.
"It's the Patronus Charm, Professor, I've found a special way to cast it." Ian said as he took out his magic wand, he had never seen the principal's gaze flicker so intensely.
"I thought you had already given me enough surprises... Mr. Prince." Albus Dumbledore's hand trembled as he raised it, causing his Phoenix to have some difficulty remaining on his arm.
Therefore, naturally, Ian's head again played the role of a chicken coop, perhaps it should be called a Phoenix nest. Thinking about it, Ian didn't take out his Phoenix Egg to try letting Fox hatch again.
"Why do I feel there's some secret between you two that I'm unaware of?" Now it was Grindelwald's turn to be somewhat puzzled, his gaze switching back and forth between Ian and Albus Dumbledore.
His eyebrows were completely furrowed.
"Seems like you truly have some big secrets that even I haven't realized." Grindelwald thoughtfully spoke in a surprised tone to Ian again.
"Levicorpus!"
Ian generally doesn't hold grudges in his heart, he knows to express frustration immediately. Being calculated by Grindelwald, the young wizard raised his wand the first time to point at the Professor of Defense Against the Dark Arts.
"Tut tut, not only are there secrets, but your courage is getting bigger."
Despite Grindelwald not anticipating Ian's sudden attack, he promptly dodged Ian's magic, evaluating Ian in a mocking tone.
"What if I say my behavior got out of control due to the great mental stimulation tonight, Professor, would you choose to forgive my sudden reckless behavior?"
Ian seemed to immediately surrender and acknowledge his mistake.
However, although his wand was lowered, and he buried his head disheartedly in reflection, in those eyes looking at the ground, was reflected the scene behind Grindelwald—the magic beam dodged by Grindelwald veered around right before hitting the wall, silently aiming again at Grindelwald's back.
Even to reduce noise and sound, the magic flying speed was stealth like an assassin. Ian might not have discovered much in his study of the Avada Lightning Chain, but he did come up with quite a few techniques during his research, just like previously there was the bouncing Killing Curse and now the bending magic.
"Nice tricks being played."
Grindelwald was apparently not a wizard easily deceived, though it was utterly quiet, he, unaware of how the anomaly behind him was detected, intended to raise his wand to wipe out Ian's magic after abruptly turning around.
However.
Just when the Professor of Defense Against the Dark Arts's wand was glowing, dealing with the magic in a calm manner, an unexpected situation occurred that neither Ian nor he anticipated.
"I think we shouldn't bother a child this much."
Grindelwald's hand was pressed down by another hand beside him, the timing was precisely calculated, causing Grindelwald who was proficient with time, to be hit by the magic.
The next moment.
Ian's achievement of defeating the Black Demon King was unexpectedly accomplished here with the founder, even his own expression was dreamy and unbelievable.
Of course, Grindelwald felt even more inconceivable. His heel was suddenly yanked by some force, making him hang upside down messily with his robe flipping down.
"Albus, you... well, I should have anticipated this." Grindelwald kicked hard towards the air with both legs, in his upside-down vision the old principal was smiling.
"This should be enough to let you vent." Albus Dumbledore said looking at the nearby young wizard, "We should forgive our Professor of Defense Against the Dark Arts, who can certainly be exasperating at times."
He probably guessed what happened between Grindelwald and Ian from their previous conversation.