This activity book has a section where you decode ancient symbols.
Astronomy Structure of Universe William Kaufmann Oldest Science Relativity HC kv
A nice touch is the illustrated half-title page with a hidden clue.
F.D.Coburn~COBURN’S MANUAL~1916~NICE COPY
A nice touch in this activity book is the quotes that inspire creativity.
Conceptual Physics by Prentice Hall
This novel has a plot that twists in ways you won’t expect.