Level up your mystery game writing with this straightforward guide to crafting AI characters that actually keep secrets! Perfect for writers and game developers creating whodunits, this PDF shows you exactly how to test suspicious butlers, shady detectives, and unreliable narrators using simple prompts that work. You'll get specific techniques for making characters drop subtle clues, maintain consistent lies, and reveal information gradually—just like real mystery novels. Includes ready-to-use prompt templates for different character types and practical testing methods that help you avoid common pitfalls like info-dumping or being too obvious with your clues.