"Don’t thank me... It takes 2 years to brew this potion... I will have to source more of it somehow.... There is no halting such a spell forever. It will spread, eventually, it is the sort of curse that strengthens over time." He said with a hint of rage in his voice "Why?" Snape asked "why did you put on that ring? It carries a curse, surely you realised that. Why even touch it?!!"