You use the grappling bowtie you get from the 2nd spy to go up from the Bistro (see map)
The third spy is in the green house, at the top of the tallest building.
There is no greenhouse on Spy Island.
You have to find the 3rd spy. She will give you the ultra-vision goggles.
The first spy is in the vault through the door on the roof of the BAD headquarters. The second spy is in the attic of the house with the laser lights on Toupee Terrace. The third spy is in the green house of the building with the laser and the guard when you enter the place called 'Rooftops'.
you climb up the grease monkey
The cast of A Spy in the House that Ruth Built - 1990 includes: Vanalyne Green as herself
there's a vent on top of the green house. click enter and go in. watch out for venise traps.
use the laser pen
Yes. You rescue 3. one of them is on top of the building on the dock, the second, in the attic of a building with yelow lasers, and the third is in a green house on top of yet another building.
you find the third spy the spys are located in the place by the dock the laser house and the last one is in a place by the roof tops
If you already have the grappling bow tie you're covered. Use it to go to the roof top green house. You find the third spy you get her out with the "cherry bomb". She'll give you the laser googles
Spy IslandThe "greenhouse" with growing plants is in the tall building, on the Rooftops above Balding Avenue. You can go there once you have the grappling bowtie, and you can rescue the third kidnapped spy.Time Tangled IslandThe "green" (recycling friendly) house is the Sky Home int he restored future.(see related questions)