4 parts Complete MaturePost-war. Twenty-one-year-old Harry Potter has been given custody of Teddy Lupin after the unexpected death of Andromeda Tonks. Having quit the Aurors, Harry focuses all his energy on his son, having adopted Teddy once being clearance to do so. When Teddy becomes afflicted with Spattergroit, what is the new father to do?
Severus Snape, having survived the attack by Nagini during the Battle of Hogwarts, has opened a potions shop in Diagon Alley, devoting himself to producing high-quality potions, as well as independent research. When he hears about Teddy's affliction, he agrees to help, due to Teddy's Metamorphmagus abilities, as typical remedies will be rendered ineffective.