Conversation so far:
What does Count Dracula force Mina to do?
Count Dracula forces Mina to drink his blood; this act curses her with the effects of vampirism and gives him a telepathic link to her thoughts
What is Count Dracula weakness?
Count Dracula has a bloodlust which he is seemingly unable to control. At the sight of blood he becomes enveloped in a demonic fury

Question: Dracula's death releases what curse?
Self-contained rewrite: Count Dracula's death releases what curse?