'Alan Connor has Britain's finest and funniest puzzle mind. You have a treat in store' Richard Osman
A BILLIONAIRE IS DEAD.
AND YOU COULD BE HIS HEIR.

A bestselling mystery writer has left behind more than £100 million in gold, locked inside a safe.
His children expected to inherit his fortune. Instead, his will held one final twist: everyone has the same chance to claim it.

Somewhere in this book is the six-digit passcode that opens the safe.
Unfortunately, so are 27,999 others.
FOLLOW THE RULES.
Use logic and careful observation - no advanced maths or specialist knowledge needed.

NARROW THE FIELD.
With patience and persistence, eliminate thousands of possibilities.
FIND THE PASSCODE.
After hours of screen-free satisfaction, go from 28,000 down to one.

CAN YOU CLAIM THE BILLIONAIRE'S INHERITANCE?