Page 126
The WILLOWBY GROCERY window holds the key to filling in the boxes on the garage door. Figure out how to solve that puzzle, and you'll end up with an important hint.
The SLIM EMILE'S sign contains an example of how the window puzzle works. It's how the name SLIM EMILE'S relates to the two items pictured after it.
Puzzle #1 SOLUTION: CLICK
ORDER/GET INFO about the book: CLICK