On the farmhouse to the left of Main Street, the chimney is the only way into the house.
Through the chimney
On the abandoned farmhouse, to the right of Main Street.
The chimney in 24 carrot
Go left from Main Street and enter the farmhouse through the chimney.
You could get a house on Poptropica. But not a pet. To get a house you could get a house on 24 Carrot Island! It's on the carrot farm. If you complete 24 Carrot Island... you have a mystery roomate! You go thru the chimney to get in. Is that easy enough.
He is at the carrot factory.
The farmhouse is past the Funny Bunny Carrot Farm, tothe left of Main Street. The house is closed up, but you can climb to the roof and enter through the chimney.
You enter through the chimney. The glass bowl is on the floor. You cannot walk past it.
on the factory window
sIMPLE YOU CLIMB THROUGH THE CHIMNEY.
Go left from Main Street to the old farmhouse. You have to enter through the chimney. The bowl is on the floor inside. Once you fill it with milk at the Carrot Diner, bring it back and you will find the cat upstairs in the bathtub.
Ratman is on Super Power Island. There is a large rat in the sewer entrance to the factory on 24 Carrot Island (climb up into the bypass pipe to elude him).