Harry wasn't the only child in the house when Voldemort attacked. When Severus first saw the baby, he had no idea her true parentage. He has a daughter and must raise her on his own. Slightly OOC Severus (what I think he would be like as a father) and Eventual OFC/Draco. Rated Mature for insinuated sexual acts and future relationship with Draco.
Mostly written as a grouping of memories of the father-daughter relationship, but will lengthen out when she goes to school.