From Cambridge UK News:
A sweet surprise was waiting for Cambridge students during the exam period – hidden within the pages of a library book. During a stock check of the Newnham College Library, a student discovered a secret stash of chocolate concealed within the pages of The Oxford Companion to English Literature by Margaret Drabble, herself a Newnham alumna. The mysterious treat-giver had hollowed out the pages of the book and stowed a Crunchie and a Dairy Milk bar within.
Scrawled inside the pages is a message encouraging the lucky finder to enjoy the contents.
The note reads: “Dear student, congratulations on finding this book.
“Take your prize and return with one for the next person.”
The tome is not a Newnham College library book, and it believed to have been spirited in for the express purpose of concealing the chocolate bars.
Jo Tynan, a spokeswoman for Newnham College, told the News: “We do regular stock checks at the library and a student stock taker came across this book last week. “It didn’t have any issue numbers on it so she opened it and the inside had been completely hollowed out.”