When he looked around the village earlier, it seemed like nobody realized what had happened with the water. If he hadn't noticed it, if he and the Princess hadn't sorted it. It would not surprise him if the entire village went down in a few days.
They did a good thing. It felt strange, up till now he has only used his powers for the sake of fulfilling his missions. Whoever gave him orders, he would obey them. This is one of the rare occasions where he would use it because he wanted to.
Rhys rummaged through the cupboards and found some ingredients, that were thankfully not out of date. It's a good thing they left their kitchen utensils behind too. It didn't take long before he is whipping up a meal for her.