Mystery Note At Barnes & Nobles

My cousin and I found a note at Barnes & Nobles in Bill Cosby's biography. Puzzled, we wondered about its origins and who put it there.

1. THE NOTE

Found in Bill Cosby's biography, which made it seem a little more sinister.

2. A closer look...

What does it mean???

3. A secret message for a spy?

Mission accepted.

4. A warning for someone about a potential poisoning plot?

Poison in Coffee? How rude

5. Or is it just a silly prank?

Very clever you little rascals

6. But still, so many questions are left

7. Why in a Barnes & Nobles book? What did it ever do to you?

Nothing makes sense anymore

8. THAT RED INK. WHY, JUST WHY???

Perhaps written by an angry school teacher?

9. And why in Bill Cosby's Biography?

What message does it send???

10. We may never know...