Equestria Expanded Universe #6
Ponytropolis #6

2016 A.W.
During the fight with the three Sirens, Tresemme was knocked into a vat of toxic chemicals, altering her mind and giving her the ability to control her hair. Setting her sights on the Elementals, she plans on eliminating them so she can rule the city and get all the monies. If that wasn't bad enough, Starlight continues to corrupt Flora, using her brother's death as the means to do so. Now, Twilight must decide how far she is willing to go to save the city and her team.