The Commissary
Books & Vault Rewards The hunt starts with the paperback, printed and shipped by Amazon. The bonus puzzles below are free gifts inside the vaults, earned by cracking the book.
VOLUME 1 · AVAILABLE NOW
Sudoku with a Secret Volume I: The Keeper's Vault — by Dan Herlehy
$14.99 Paperback (8.5" × 11")
✦ 200 honest Sudoku puzzles (70 Easy, 80 Medium, 50 Hard) ✦ Secret key puzzles hidden among them, each with a shaded cipher digit ✦ 3 escalating decode acts opening 3 web vaults ✦ Unlocks up to 350 free bonus puzzles on this site ✦ Full answer keys included in the back “This is a unique Sudoku book, that at the same time contains an Escape Room game hidden in it!”
— Emma Cazabonne, Words and Peace (sent a free review copy)
Buy Volume 1 on Amazon ↗
Printed and shipped by Amazon — also on Amazon UK, Canada, Australia and Germany
The Keeper's Gifts Handed over inside the vaults the moment you speak each word — 350 free puzzles in all, kept for the readers who earned them.
I
50 Easy Puzzles The Keeper's First Gift — 50 printable easy puzzles with answer key PDF.
THE GIFT OF VAULT I
Speak the first word ↗ II
100 Medium Puzzles The Library of Puzzles — 100 printable medium puzzles for seasoned puzzlers.
THE GIFT OF VAULT II
Earned in the vault ↗ III
200 Hard Puzzles The Grand Vault — 200 hard printable puzzles, the ultimate hoard.
THE GIFT OF VAULT III
Earned in the vault ↗ Upcoming Volumes in the Series Four more books are being written. Each book holds a different secret.
Volume II The Corsair's Chart
Coming Soon Volume III The Lost Love Letters
Coming Soon Volume IV The Silent Signal
Coming Soon Volume V The Hollow Oak
Coming Soon 
