As Potter is to Snape: Part 2

AU! Possibly a part two of As Potter is to Snape. You'd definitely want to read that first, but basically, Snape has adopted Harry. He and Remus were both adopted by Albus and Minerva in 4th and 6th year. Snape was always a spy. This would start up right at the beginning of the summer before 4th year. I'm not sure if it will end at the end of summer or continue into the year.