there is no key for the 3rd spy
The third spy has it
There is no greenhouse on Spy Island.
By rescuing the third spy.
There is no key. The first spy is rescued through the ceiling, the second one is freed by the laser Pen, and the third is blasted out of her cage by the Cherry Bomb Tree. (see related questions)
pla help
go to B.A.D. Headquaters.
you take it and bring it back to spy island and give it to the spy in the trash.
Infiltrate the enemy headquarters: the B.A.D. control center.
you pop down the well and find the key
There is no key on Spy Island. The "vault" holding the first spy has a large hole in its ceiling. The door at the BAD hideout (satellite control station) is opened using a fingerprint from the BAD Bistro. (see related questions)
You have to find the third agent. She will give you the goggles and the last password clue.
there is no key just get the camoflage suit and go to the docks