There is no Graffiti that was some thing poptropica help blog made.
Once you open the locked vault and rescue the agent, go back to the right and there will be an agent there.
IT IS IN SPY ISLAND
Get the Poptropica Secrets app and find out.
He is at "Spy Island", just right to the air balloon in the "Headquarters" You can find him on the very top floor.
Find a way to get to the top of the building
in spy island
You have to go get the lizard costume and get into the place and find him in there tied up.
Spy Island is island #6. After Spy Island is Nabooti Island #7
To clean the graffiti in Mythology Island on Poptropica, you need to first buy a reed pipe from the market and use it to play a specific tune near the graffiti. This will summon Pan, who will help you clean the graffiti with his music.
everywhere
You can find him in the HQ on spy island or rarly on Realtiy tv island.
He is at Headquarters, the big building on Main Street of Spy Island. Go to the second floor to get your assignment.