A roll-and-move game based on the cartoon series "The Country Mouse and the City Mouse Adventures". The aim of this cooperative children's game is to lead all 4 pawns through the story of the stolen diamond and to solve the case together with Emily, Alexander and Sherlock Mouse before Notail Nogoodnik, the thief, is seen five times. The board shows a track consisting of lots of coloured spaces and pictures from the cartoon series. There are four pawns. Players take turns rolling the colour die. The active player moves a pawn of his/her choice to the next space of the colour on the die roll (all players can move all pawns). If a pawn lands on a yellow space, one of the twenty, randomly distributed face-down tiles has to be turned over. If it shows a picture from the board, the pawn is moved to the corresponding space. If the tile shows Notail Nogoodnik, it stays face-up and the player's turn is over. To get a pawn to the finish line, the spaces has to be reached exactly. If all four player pawns reach the finish line, all players win together. If five tiles showing Notail Nogoodnik are turned over, they all lose together.