A versatile notebook / journal: the perfect place to design secret passageways and hidden security systems to protect your evil headquarters. The structured blank pages within include horizontal rules, graph paper, and blank pages for engineering your nefarious compound to your exact specifications. Don't forget to add the underground bowling alley All pages are numbered (except the blank ones, to allow for pure artistic freedom), and a blank table of contents is included, so you can find your plans to foil your arch-nemesis faster.