A time capsule: The fifteen puzzle
the impossible manuscript
Game over
A trip to London
A letter from the past
Found and lost
A death in the family
An extraordinarily gifted man: The mission
Norton Thorp
Random numbers
Randomness everywhere
Vanished
A set of neo-pythagoreans: The mandate
The beacon
The team
The hunt
The symbol of the serpent
A professional job
With a little help from your sister
Pythagoras' mission: All roads lead to Rome
Kidnapped
The last piece of the puzzle
Epilogue
Appendix 1: Jule's solution
Appendix 2: Infinitely many primes
Appendix 3: Random sequences
Appendix 4: Simple visual proof of the Pythagorean Theorem
Appendix 5: Prefect and figured numbers
- Notes, credits, and bibliographical sources.