My efforts were not in vain either as thanks to both experiencing the effect of time magic and understanding the white trees version of it intimately I felt confident in recreating the spell in this worlds magical format. The real trick became in deducing the wand movement and accompanying incantation. Arithmancy and runic knowledge helped here but it was not a fast process. I spent a good two weeks on it and only found a barely acceptable wand movement and incantation. The effect was atrocious though so it was quite clear that I needed more adjustment.-
I set aside an entire afternoon at the first of October as my search function went off cooldown. I was sitting in the gazebo in the schools lush gardens that I had made my favorite place to study in my time at Beauxbatons and sent to activation command for the function.-
{Search function activated.... searching.... searching.... searching.... Target locked. Initiating trade window with target: Albus Percival Wulfric Brian Dumbledore , World : Harry potter(Alternate)}
'Oh? Now that's interesting. I wonder if this version is the same as the one I occupy or if things are vastly different?' I thought intrigued at this turn of events.
That familiar graying of the world happened as the window appeared fully white for a moment before an image appeared on it. It was Dumbledore as I knew him with his gray beard and half moon spectacles sitting at his office desk. He had one hand paused with a cockroach cluster midway to his mouth while his right hand held a quill over a sheet of parchment. His gaze was not hostile but completely confused as he observed the surroundings both on his side and mine.-
"An interesting piece of magic. Quite unfamiliar to me as well. How does it work?" he asked curiously.
"It's not exactly magic but I understand how you may make that mistake. I am Alexander Drake, multiversal merchant. At your service." I said with a slight flourish.
He chuckled "You'll forgive me if I find that rather difficult to believe. To my eye you appear quite like a student attending Beauxbatons." he said amused.
"Indeed I currently am. But not your Beauxbatons. I know this because you do not recognize me. My worlds version of you is quite familiar with myself. My world is an entirely separate but similar enough one like your own. The multiverse is a grand thing like that." I said with a smile.
"Oh? Very well, I'll bite. Tell me something only I would know." he said with an expression that said he fully didn't expect me to.
"You are currently in possession of the Elder wand." I said calmly.
His expression stiffened as his eyes narrowed subconsciously.
"You have my attention." he said no longer denying my claims outright.
"You needn't take my word alone. I have a cross world bazaar with people of other worlds that you can see for yourself. Seeing is believing after all." I say sending him the system coins needed to visit the bazaar and telling him how to get in it.
I ended the contact and opened the doorway to my realm and entered it. Once there the basilisk spared me a brief glance before going back to napping on the mountain. I ignored that however and entered the bazaar myself to await this new Dumbledore. It didn't take him long to appear and I gave him a knowing look.
"Done with your tests on the coins I take it?" I asked amused.
"Suspicion of magical artifacts is only healthy my boy." he said shamelessly.
"Yes, I'm well aware. I obtained this damage because of that precise lesson." I say tapping my eyepatch and showing my bandages.
"Did you not receive treatment?" he asked with a frown.
"Of course I did but powerful magic leaves damage that is either impossible or near it to fix. My arms are scarred and my eye is near blind. I simply haven't found a suitable replacement yet. Not to worry, I am not in any pain." I assured him.
"Oi, Brat! Who's this old guy?" A familiar voice calls from nearby.
"Taking a look around again or on your way to visit one of the other worlds?" I asked Marco with a smile as the he walked over.
"On my way back from Remnant. Was negotiating with the little ladies dad about the crews participation in the war." Marco said with a shrug before looking Dumbledore over curiously "So who's the old guy? New contact?" he asked curiously.
"This is Albus Dumbledore, he's my newest contact. Funnily enough he's a wizard from an alternate version of my own world." I said casually.
Marcos eyes lit up "So we might finally be able so see what your world is like?" he asked eagerly.
"Up to him. He's the contact holder so he'll be the one to decide. Still don't push, he's new to all this so give him some time to adjust first alright?" I said firmly.
"You're the boss yo. Names Marco, Whitebeard pirate commander and ship doc. One piece world." he said introducing himself properly to Dumbledore.
"Albus Dumbledore, Hogwarts Headmaster. Are you really from a different world?" The old goat asked curiously.
"Yup, See that stall over there? That's our worlds set up. What's your world called?" Marcos said with a casual smile as he pointed out the stall.
"Earth." Dumbledore said but I shook my head.
"Harry Potter world, alternate." I corrected.