The inventor of the site is Jeff Kinney, author of Diary of a Wimpy Kid. But if you mean in a certain world, I can't help you unless I know the world you're talking about.
The inventor goes near Holmes (underground), so when you see pst... in here! or something like that,that's where the inventor is (this is main street for your information in poptropica).
He is in the air vents of the robot club.
On Time Travel Island in Poptropica, the phonograph can be found in the 19th-century section of the island. To locate it, head to the area where the inventor's workshop is situated. You'll need to interact with the inventor to get the phonograph, which is essential for progressing in the quest. Make sure to explore the various rooms to find it!
The door code when chasing the inventor is 2014.
when you find the inventor he will give you a jet remote then go to your backpack and click on the jet remote and a jet will hover over you click on the door.
Go to the disco place, when you walk in go to items and use heat vision goggles. look strait up and he will be in the vents.
we wear it to look for the inventor
after you find 24601 on poptropica find a place where you have to crack the code
there is no engraver poptropica.
you go back to main street and go underground where the inventor is
You don't need to find it. After the inventor gives you the jet remote, simply return to the ground and press USE. Then click on the jet that comes and fly to a destination.
you can find it in early poptropica