Edge of the Mat

Wait—did my fingers just twitch? I blinked against the dim room, staring up into open space. Where is the exit? Okay, don't panic... I pressed both hands flat against the rough, scratchy carpet, tentatively pushing my upper body up. I can move! Right beside me, a bright pink and blue mat marked a sudden border on the floor. I reached out a trembling mitt, tapping the smooth edge of the mat to test the boundary. It didn't push back. I curled my legs tight under me, sitting very still while mapping the silent floor around me.