This is why you should crack open a book from time to time. You might find treasure.

A book was recently donated recently to the Pleasant Valley Library for their book drive. It's not uncommon to find book marks, birthday cards or even cash from time to time. The pleasant Valley Library has just about seen it all but one of their latest donations really left them scratching their heads.

"We don't know who donated it but it's definitely the most unique donation we've ever received."

Credit: Pleasant Valley Library

My first thought was that it was a vape. It turns out it was a small flask disguised as a cell phone. I can only assume this belonged to a college student.

Credit: Pleasant Valley Library

The library still plans on selling the book without the flask.

If you're interested in purchasing the book here's the listing for it. Feel free to reach out to them.

"Have you ever wanted to feel like a spy? Do you want to own the coolest book donation ever? Do you just like collecting weird and interesting things? We have the perfect book for you! We're auctioning off the most unique book donation we've ever received. This book would be the best conversation starter ever. It's perfect for family gatherings; you can look smart and handle your great-aunt's latest political argument at the same time. If you ever get recruited by the CIA, you already have your first piece of spy equipment ready to go (they'll be so impressed). The possibilities are endless! The starting price for this book is $10.00. If you would like to place a bid on this book, call the library at 845-635-8460, or email PVFLibrary@gmail.com. The bidding will conclude on August 5th, and the winner will be announced on August 6th. Don't miss your chance to own the best book donation ever!"