As Harry and Ariel struggle to mend their relationship, an even greater threat looms in the not-so-distant future. Severus is determined to fix both if it's the last thing he does. A continuation of Red Sorrow spanning from Goblet of Fire through Order of the Phoenix.

AU. Harry Potter was not the only one marked that fateful Halloween, and Severus Snape is given redemption in a form he least expected. A Sibling!Addition story beginning pre Philosopher's Stone through Prisoner of Azkaban. Goblet of Fire and Order of the Phoenix will continue in a separate installment.