Take the eye test, and the eye doctor will give you a camouflage suit which can turn invisible!
The Eye Test
When the eye doctor points what to see, you need to pick the opposite one.
so for example, if the dr points i, (at the real game, there IS no i) you might want to point !, the opposite of i.
in spy island, go to the spy glasses shop then ask that man the last opition eye test do everything opisit then he tells you to go upstairs go out of the shop and up the stairs the man will give you the invisibility cloak ---- But the door up there is locked...
I'm pretty sure you are talking about the spy island right? If so, you have to go to the dock and get past the dogs.
go to the spy glasses store got to the guy and get eye exame and click the opposite letter he points to like the M click the w
go to dr.spyglass what he points to choose the oppisite view he wil give you invisibility at the top of dr.spyglass's house in that door go to the top of the b.a.d warehouse.
you go to the headquarters in spy island
when you get on spy island you go to the far left to get to the docks and to.......to save the spy!!
If you mean on the train then you have to get the invisibility cloak, go from the carriage your in to his one and then walk in there.
go to the very bottom
go to B.A.D. Headquaters.
go through the top
go to poptropica secrets.com
the second spy is on top of the roof in that little house thing and you go in with your camo suit.