"He only remembers everything up to the moment he broke apart. Anything that happened after that he has to be told." The real Tom explained patiently. "Dumbledore is the reason we had the memory lapses and he is the one who forced me to kill Myrtle and break our soul. He is the reason you are a Horcrux. He already knows of your existence." He continued looking at the Horcrux, watching as it sunk in. Without even thinking, he reacted when he felt the pressure of magic changed and threw up a wandless, wordless barrier around the Horcrux as he screamed in rage, his magic bursting out, in uncontrollable whips.