Regis was wondering around lost after making the choice to kill Dettlaff to side with geralt. considered a betrayal, Regis had to flee. he was no longer welcome among vampires and did not fit in among humans. as he was walking mindlessly through the woods near Velen, he heard an ear piercing scream. he ran to check and found a woman lying on the ground whose heart was physically damaged by emotional pain. Regis brought her into her house to care for her