The Cure (слэш)

Twenty-five years after the Battle of Hogwarts, Albus Severus Potter is accepted as an apprentice by the Potions Guild and is assigned to his requested Master – Severus Snape. As they work together to design a better potion to help his father, whose health has been in a downward spiral since the war, Severus soon realises that what is wrong with Harry has nothing to do with a curse. A tale of fear, and courage, of old love, and new beginnings.