but now those tiny symbols were flowing into both of its ends as they spilled out of the rays that made up the angle , like water from miniature irrigation pipes the last loose segment began to move , drawing closer , shrinking to fit the width of the angle the ends flowed with aecxes , now closing into the rays the graphite darkened slightly and a sudden , dazzling , minute star appeared again , and with movement almost too fast to follow , tore around the completed figure , a perfect equilateral triangle , before disappearing altogether .