THE KEY TO CATASTROPHE! Searching for the source of the mystical monsters threatening her beloved Shanghai, AERO confronts the mysterious MADAME HUANG ? and faces the horror of KEYSTONE! Meanwhile, WAVE fights to prove herself to TRIUMPH DIVISION by tracking down the fugitive scientists of ALONTECH. What will she do when she discovers their true motives ? and how far will Aero be willing to follow her friend down her new path?