"Very well," Didymus answered with a nod. Then he bared his teeth, in what might have looked like an aggressive expression, but it was only so that he could hook a canine into the pouch in order to tear the thing open. Didymus crouched beside the bowl of water.
Ambrosius gave a possessive growl at that, apparently thinking that his master was intent on stealing his broth. Didymus chuckled at that and shook his head. "It's all right, Ambrosius," he said, with a smile and a glance up at the good doctor. "I shan't steal thy broth." Then he poured the powder into the water, and he folded the empty packet so that he could use it to stir.
Once he'd finished off the broth, Ambrosius took a sniff of the other bowl and then lay down on the floor. He didn't seem especially interest in the water, but that was all right. Didymus could always carry it up to their room for him. He might be thirsty again later.