Harry and Anne Potter-The Potter Twins

Harry and Anne are living with their extended family. Uncle Vernon and Aunt Petunia are physically abusive to the twins while Dudley is verbally. Snape pops in by order of Dumbledore to check on them as their safety was in question. What will Snape do when he finds the awful conditions the kids are living in? He thought they would be spoilt kids, but finds the two kindest people.