The story

A stateless, untraceable cyber-ops collective only known as Null Directive has quietly embedded itself within the global financial system, orchestrating digital chaos from the shadows. Their next move is imminent: a large-scale cyberattack that could paralyze the global banking infrastructure and undermine economic stability worldwide. Behind their operations lies a single, heavily guarded lifeline: a master cryptocurrency account used to fund their infrastructure, tools, and global web of operatives. Their target, Grand Cayman, where 130,000 corporations use the favorable tax laws to shelter over 15 Trillion dollars.

But someone from within has turned. Known only as “The Accountant,” a former financial architect for Null Directive, he vanished weeks ago after discovering the scope of the group’s plan. Before disappearing, he left behind a trail of encrypted clues pointing to the master decryption key; a series of numbers buried across Grand Cayman in the form of riddles, puzzles, and code fragments. The full decryption key is broken into parts, hidden in public monuments, historic markers, and encoded artifacts.

You are a top-tier agent of the Cayman Islands Monetary Authority (CIMA). Your mission: follow the Accountant’s trail, recover each fragment of the decryption key, and access the crypto account before Null Directive can complete their attack. Once decrypted, the account can be seized, freezing the group’s Bitcoin and bringing their global campaign to a halt.

The route

Twelve stops, 0.9 miles, one loop.

From Georgetown Cruise Port to Cruise Port. Every point on this chart comes from the quest’s own coordinates. Pick a difficulty to see what each stop asks of you.

Start Stop Hidden find Finale

Decryption Keys

Collect thirteen decryption keys along the way.

They’re spread across the stops. Earn each one by solving what its stop asks, then bring them all to Cruise Port.

5Decryption Key Digit 5
1Decryption Key Digit 1
3Decryption Key Digit 3
3Decryption Key Digit 3
1Decryption Key Digit 1
5Decryption Key Digit 5
2Decryption Key Digit 2
3Decryption Key Digit 3
6Decryption Key Digit 6
4Decryption Key Digit 4
0Decryption Key Digit 0
3Decryption Key Digit 3
8Decryption Key Digit 8

The finale

Stop Null Directive's Cyber-Attack

You now have all the digits to the decryption key for the Null Directive cryptocurrency account. You can now stop the attack. Offer the decryption key to finish the challenge.

AT CRUISE PORT

Ready when you are

Play Grand Cayman - Black Ledger in the app.

Download the quest before you go. Every stop, puzzle and map works offline.