The hardcover has some wear to the corners and edges. The binding is good and pages are clean, no underlining, highlighting, or writing. No cassette, book only. 📚 Check out my shop for more Teddy Ruxpin Adventure Series books! Synopsis | Newton Gimmick introduces a new invention: a “multiplication table”. Powered by one of the Crystals from the Hard-to-Find City, the device allows the table to create a duplicate of anything beneath it. While attempting to help fix the malfunctioning table, Grubby unwittingly becomes the subject the table duplicates, resulting in a second Grubby appearing in the room. Unable to tell which Grubby is the real Grubby, the confrontation ends when the duplicate Grubby ultimately disappears, proving the effects of the duplicate object to be only temporary. Double Grubby: Gimmick's Invention Duplicates Lots of Trouble (Adventure Series. book 12) Value: “This story shows the value of being careful near the water while still having fun.”