yes, she is at the top to free her get the cherry bomb (the plant all the way right) but move fast 'cause the fuse is short. DON'T FORGET!
There is no greenhouse on Spy Island.
The greenhouse is atop the tallest building on Balding Avenue, and the third spy is being held captive there. (see the related question)
You have to find the third agent. She will give you the goggles and the last password clue.
In the greenhouse of course! getting there is another question.
Rescue the third spy by opening the cage in the greenhouse atop Balding Avenue. She will give you the Ultra Vision Glasses. (see the related question)
You get the ultra vision gogles (which can see lasers) when you rescue the third spy, from the greenhouse in the rooftops above Balding Avenue. (see related question)
The greenhouse is atop the tallest building on Balding Avenue, and the third spy is being held captive there. You will need the grappling bowtie from the second spy in order to reach the rooftop above the Grease Monkey garage.(see the related question)On top of the highest building.
The third spy has it
there is no key for the 3rd spy
You have to rescue the three spies in order, because the first spy gives you the item to rescue the second spy, and the second spy gives you the item to rescue the third spy. The first spy is in the warehouse at the Docks, the second is in the electrified building on Toupee Terrace, and the third spy is in a greenhouse on the Rooftops above the Grease Monkey garage. (see related questions)
The "third spy" is being held in a greenhouse in a tall building on Balding Avenue. You can only get to the rooftops (above the Grease Monkey garage) when you have the Grappling Bowtie from the second rescued spy. (see the related question)
you go back to the bottom and exit the shoot thing