"Constantin's diary is a stark record of a living person's descent into the curse of undeath. The young woman chronicles her journey from the original meeting with the being she refers to as "Adrian" all the way through to her last living hours upon this earth. It's heartbreaking and terrifying all at once, and worse the diary is cursed, as Lara can track the book to find fresh prey. Victims often that too willing, lulled by Lara's most secret hopes dreams, and fears; blind to the monster Lara has become."
While you possess the Diary you have the following special abilities:
• You gain a +2 bonus to Constitution saving throws.
• You gain cold and necrotic resistance.
• You have advantage on Perception skill checks.
• You gain darkvision within 60 feet.
• Twice per day you may use a bonus action to regain 10 hit points.
• You have disadvantage on any saving throw against undead.
• You are vulnerable to psychic damage.