But then, why would they leave the guard posts in such a suspicious state?
In any case, Jubai will be fine. The Queen's knights are all seasoned veterans who stick to strict codes of honor, just like Sir Kelton. Even if he can be annoying sometimes, he knows what he's doing. That's why you chose to leave home and become his squire in the first place.
Well, that and you didn't have much choice. Your parents couldn't support you anymore, up on their small farm in the Northwest of the kingdom, and the best opportunity for a person your age is to be a squire. So when they heard Sir Kelton was looking, they made you travel all the way down to the capital to try out. Of course, you didn't think you would be shoveling manure instead of planning out exciting war campaigns.
You straighten a minute, stretching your back and remembering what else it was that attracted you to the squire life.