Merlin kept a hand on her shoulder or side, just in case, and would until she seemed ready to stand completely alone.

"I think, indeed, that you should stop for the day. First transformations are a huge trauma to the body and mind. You need to let yourself adapt to what is now part of you. Eat a good meal, and sleep, even, then exercise. You should be fine, after." He nodded. She had learned very quickly. She would recover quickly too, he was sure.