She serves as a shield now. Then, with the ability to strangle her, who knows what will happen. But you have a hostage, at least.
Not saying it's guaranteed to work, but it's worth a try if you're about to get your head chopped off. chopped off.
Grabbing an hostage with your hands tied would be highly unsuccessful. Even if , by chance, you were quick enough to avoid the soldiers and grab her, they`d just rush you and grab you anyway. You could threaten to strangle her- It takes a long time to strangle someone and again the soldiers would be all over you.
Then they`d probably torture you slowly and she would probably take special enjoying in it.
What would I do? It`s really hard in a situation like that if no dragon conveniently came along.
I guess I`d run, but in the opposite direction, past the cart behind me and use it as cover while dodgy zig-zag. then, if I got that far that I wasn`t archered, i`d zip between the houses and just keep running until I can get some space and free my hands and\or hide. But that would only be the start because the whole area would be on alert. My plan would be to scale that wall and get out to the trees as quickly as possible.