Minnie the Minx Dennis' house by Roger who had gained a copy of the Treasure Map due to Smiffy, the dipsy member of The Bash Street Kids, leaving the original in the photocopier machine in Beanotown Library. Upon finding out The Bash Street Kids were also hunting for the treasure, the trio followed them to London. Once the mystery had unfolded that the treasure was buried deep in the Millennium Dome and the Bash Street Kids instantly found it and celebrated their victory. However, Dennis attempts to intimidate the treasure off of Fatty but it quickly flattened leaving Minnie and Roger to chase
Dennis the Menace and Gnasher Street leader, outwitting Dennis and his cronies and Dennis angrily blaming it on Roger. Whilst a rivalry with The Bash Street Kids was touched on before in other strips, it was this story which made the rivalry far more well known. Several succeeding feature length strips after, usually drawn by Mike Pearse or Kev F. Sutherland, further depicted the rivalry even to the point it would get violent. He also made other appearances in the spin-off Bash Street Kids - Singled Out, where he would take on a similar role. In the same year, Dennis became a major mascot for