You decide to help.

This sort of this is technically below your station, but you are a knight, and you are supposed to help people.

At least you think there was something in the code of chivalry about that. After taking so many blows to the head during jousting tournaments its kinda hard to remember a lot of things, like where you left your keys, or how Pop-Tarts work.

You agree to help the old hag (who doesn't seem to appreciate you calling her 'old' or a 'hag' for that matter), and get behind the wagon and start pushing.

It takes a good fifteen minutes of pushing and pulling, but you finally manage to wiggle it free and make yourself absolutely filthy in the process.

The 'aged lady' (her term, not yours) thanks you for your help and offers you a trinket for your trouble.

"Take this amulet, and where it at all times. If you do, good things are sure to happen." She hold out what a piece of string with what looks like the lid to an old mason jar on it.

You politely accept it and wait until she is out of view to decide what to do with it.