The Horcrux of Severus Snape

Snape's Headmaster and Harry's the DADA professor/struggling father. Against all odds, Snape's newfound companionship with Harry's daughter brings them closer than ever before. Meanwhile, strange things are happening and a sinister figure threatens to destroy everything they've worked so hard to preserve. Oh, and Snape has a Horcrux. Just sayin'. Spoilers: HP 1-7. Snarry.