Find the Secret Code

A world-famous cryptographer has vanished without a trace. She spent years creating an unbreakable security system, and now, in a cruel twist of irony, unlocking it may be the only way to find her. Then investigators discover a secret file marked "X," containing a list of names and 12 cryptic clues. Somewhere among tens of thousands of possible combinations is the code that unlocks the truth. There's just one problem: every clue tells you what the answer isn't. Use logic and deduction to eliminate impossible combinations, narrow the field, and uncover the single code that fits every piece of evidence. With tens of thousands of possible codes and only 500 words of evidence, every clue matters.

• Eliminate tens of thousands of possible code combinations
• Solve 12 cryptic clues using logic and deduction
• Work backward as each clue reveals what the answer isn't
• Follow an immersive missing-person mystery as the evidence unfolds
• Enjoy hours of challenging, screen-free puzzle solving