A plan comes to mind.

Unbuckling your two crossed weapon belts you hold them out at arms length, before dipping at the knees, till the dangling weapons get about 6" off the ground, then letting them drop. With a sly little look of apparent shock and innocence you then put your finger to your mouth and simply say, "Oh my you must have me mistaken for someone else, I haven't done anything."

"Yeah right we know who you are. Do we really look that stupid?" The one with the sword asks as he motions for his companion to grab your guns and sword. As you expected they seem too frightened to search you further, and once he has your weapons in hand the other steps forward and pulls a pair of iron shackles from his pack. You are actually taken by surprise a bit by the weight as he locks them on your wrists, and to your surprise as he clamps them locked you have another flash of insight. You are not sure if it is some kind of memory or vision, but you see a vivid image of yourself pulling a tiny pick from a little pocket at the top of your left boot and picking locks very similar to the ones on you now.

"Please, no, I am innocent. Let me go." You plead with the sad weeping look of someone far more pathetic than you clearly are. "Please, I will do anything." You add batting your eyelashes.

"You sure this is her?" The guard with the crossbow asks as the other takes hold of the foot long chain that is between the two shackles.

"Yes I am sure." He replies yanking you forward and soon the three of you head down the street toward the heavily guarded building that you are more and more sure houses your target. They lead you in with less fanfare than you were expecting, which comes to you as a bit of a relief. Sadly this is short lived as rather than taking you directly to a cell, which you could then escape from easily, you are taken directly to an office and walked toward a wall with a hook 8' off the ground that you realize that he intends to hang you from, and you are not sure you can get free hanging from a wall. As the second guard drops your weapons on the large heavy wooden desk you realize you have a decision to make.