'Chocolate relic' found in university library

While finding old books in a library might not be a surprise, what was found tucked in amongst them has cause a bit of shock.

People working at Cambridge University Library found a chocolate bar wrapper which is at least 50 years old amongst the shelves.

Once upon a time it contained a Crunchie bar, but not as we know it.

Not only did the library-snacker think it was OK to eat in the library, it also seems like they didn't care about being quiet either - there are quieter bars after all!

But don't worry, the hunt is on to find the culprit!

What the modern Cadbury's Crunchie looks like now

The Crunchie bar we know today is made by Cadbury, but that hasn't always been the case.

The chocolate-covered honeycomb bar was first introduced by Fry and Sons in 1929.

This particular orange wrinkled wrapper was found as shelves were being taken apart in the library.

It has a price of 6d on the front - which comes from a time before a 10p, 20p, 50p or £1 were the coins in our pocket.

6d means this bar cost sixpence in old money, which the National Archives reckons would be about 35p nowadays.

The change from old to new money - or decimalisation - happened in 1971 so this bar wrapper must be at least as old as that.

Cambridge University was founded in 1209

A post online about the "chocolate relic" asked the culprit to come forward and "fess up" to leaving the wrapper behind.

So far nobody has come forward, but the library team hope someone will be able help them date the bar more precisely.

Lizzie Woodman who is in charge of social media for the university's library, said: "Sometimes we find fascinating reminders left behind by past members of the library.

"The wrapper had been stashed behind some books and then fallen down the back of the shelves so it was trapped under the bookshelf, meaning it could stay hidden for over 50 years."

She added: "With millions of books and more than 205km (127 miles) of bookshelves, it's hardly surprising that things sometimes stay hidden for so long."

Lizzie even said there were even some crumbs in the wrapper when it was found - wonder if she tried them?