The Black Lake

The Black Lake is the lake that Harry Potter and Albus Dumbledore have to cross to get to the island in the centre of the lake to retrieve the Horcrux. The lake is found in side the Cave.The lake is full of Inferi which are all re-animated dead corpses only to serve the will of the Dark Lord. All of them have been killed by the hand of Voldemort and have returned to the lake as Inferi. One of hundreds of Inferi is Regulus Black who went to The Cave and retrieved the real Horcux. Unfortunatley he sacrificed himself so that his house-elf, Kreacher could escape. Kreacher looked back from the boat at Regulus in utter horror as the Inferi carried him back into the black, silky lake, only to become one himself.