Ebay offers Book Safe with Key Lock for $11.99 with free shipping.

Product Description:
Hard book cover & spine, entitled "The New English Dictionary”. This is a safe box with lock and key enveloped in faux pages. You can store your valuables at your fingertips and right in plain sight. This clever book safe blends in great with other books on the shelf so nobody will ever know it’s a safe. Great for storing cash, jewelry, guns, medications and any other valuables. Fool thieves and protect your valuables with this clever Dictionary safe! Open the cover to reveal the steel safe. Comes with 2 keys for access. No one will know it is not a book!

• Size: Small :7.2 x 4.5 x 2.2 Inch (18 x 11.8 x 5.5cm)
• Color: brown
• Using high quality steel with antirust powder coating
• Disguised as hardback book
• Inside Dimensions: 2” (D) x 4.25” (W) x 6.75” (H)
• Outside Dimensions: 2.25” (D) x 4.5” (W) x 7.125” (H)  SHIPPING INFORMATION