Brain Snacks: Tasty Tidbits of Knowledge
Did you find the hidden message on pages 129-153 of The Maze of Bones? In the corner of each page, the page number has been replaced with a number. That number corresponds to a letter. Together, it spells out a secret phrase. Check it out.
That's not the only code. Check the first page of your book, opposite the cover where the cards are tucked away. See those skulls? Look closer. There's a Roman numeral on each one. Find the corresponding letter and unscramble them for another clue.
Trying to collect all the cards to learn even more Cahill secrets? There's a handy checklist online to help you keep track. It even has a code for a few free cards.