There is a letter wrapped in the pile's securing twine.
"TO TEAMAN, RITZ.
I HAVE SELECTED FURTHER READINGS FOR YOUR JOURNEY.
I WILL HAVE MORE.
YOU KNOW WHO THIS IS.
ENJOY.
BYE."
The stack of books are old (https://www.efupw.com/forums/index.php?topic=708432.0), singed (https://www.efupw.com/forums/index.php?topic=708076.0), and smelling of heavy chemicals.