This is a very well written story aimed at children. It combines just the right amount of fact and magic to keep a child's interest and the sentences are short and concise. One criticism I have is that cows have four stomachs, but that is easily fixed. Perhaps, it would be a good idea to write a follow up story and describe Sams mothers journey back to health, or even, if you could keep the same tone of fact and magic throughout, her death. It's a difficult subject to deal with, but the fact is there are children out there who lose parents and a story such as this would maybe help with them to process their loss. Its just an idea. But even if you don't, this story stands alone very well and you have a gift for telling a story x