Once the four tile pieces are placed into the wheel, the rest of the map becomes inaccessible. You must obtain these before then. * The picture on the wall at (0,-1) serves as a teaser for Submachine 2. * The "single page from a diary..." can be found at (0,-2). * Wisdom Gem: 1. * Follow the steps for Tile A to blow out the transformer. 2. * In version 2 ("Submachine Extended"), you must collect all four tile pieces or else the next step does nothing, rendering the gem impossible to obtain. This may be a bug. 3. * Doing so will reveal a lever at (-1,-2). Pull it. 4. * A ladder will be released at (1,1). Climb it to find the Ancient Crystal of Wisdom.