After you free the guy that is on top of the building that has all those windows that shock you, he gives you the bow tie.
if you mean the bow you get it after you save the second spy
You have to take it off someone in spy island
Get the grappling bow tie.
if its the bow tie on spy island you click on it then you aim it then it will take you to the place you aimed it.
in your items icon
You use it as a grappling hook!
You use it to climb to places that you can not reach when jumping.
u try to get cross it with the bow rope.
On the Spy Island on Poptropica you can use the bow to grab and climb and swing on things. Kind of like Spider Man.
use the chameleon suit to get the grappling bow tie
so you can grapple and go up to high plces
you click on the bow tie icon at the bottom left corner and click where you want to go