[Regulus Black]

Regulus was only sixteen when he joined Voldemort. His father and mother were very proud of their youngest son, and the youth's own happiness knew no bounds! Once, a year after that, Regulus offered Kreacher to the Dark Lord because the Dark Lord needed a house-elf to hide his Horcrux in the cave with the cursed potion.

Kreacher almost perished during his time with Voldemort and, upon returning to Regulus, told his master everything. After that, Regulus began to think about leaving Lord Voldemort and betraying him.

Some time later, he asked Kreacher to show him the place where they had gone with Voldemort. In the cave, Regulus took a medallion out of his pocket (resembling the one Voldemort had). He ordered Kreacher to take it, and once the basin was empty, to swap the medallions and flee alone. After Regulus drank all the liquid and, tormented by an insatiable thirst due to the cursed potion, was forced to drink from the lake, he was dragged underwater by the cursed merpeople, intending to drown him. They pulled Regulus by his arms and legs, dragging him deeper and deeper underwater. Regulus felt the water enter his lungs and began to choke.