The water sprite returns and smiles. She touches the little dragon and he grows it the size of a normal hatchling. That smaller size is a defense mechanism that white dragon hatchlings use to avoid danger. To feed Istari you can give him anything you want, but make sure you give him plenty of milk to drink. Without it Istari cannot develop. All dragon hatchlings must have milk in order to continue growing. Also be sure to give Istari lots of love. Lucky for you he has not realized that his family are dead and he is the last, but when he grows older he will find out. For news of this wicked deed will be spread throughout the kingdom everyone will be talking about it and bounty hunters will be searching for him wherever you go. The normal townspeople however will be thrilled to see him and do what they can to help you. That is all the advice I can give you except. If you have companions in your group it would be wise and helpful if he spent time with them as well so that he has bounds with all of you. This will make it easier to sooth his pain when he discovers the sad truth." With that said she disappears.