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.
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.
The door code when chasing the inventor is 2014.
we wear it to look for the inventor
find him
Go through a window outside of the club.
There is a window outside the building. It's hard to get to, though.
When you complete all the game shows Holmes will tell all the robots to look for you. You walk into town and run to the manhole and jump down where you will find the inventor guy waiting.
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.
the inventer gives it to you
There is no AC, you have to go to the factory.
After you find him in the attic he is on the roof of the nightclub. Hope that answers your question. :)