Esteban Vazquez 
The Halloween Warriors [EPUB ebook] 
Return of Matilda

Matilda is the witch who, from the beginning, suffered many defeats, but she never gave up. On this occasion, Matilda returns, ready to take revenge once and for all. But with the passage of time, the world evolved, and that generation became extinct.

Matilda traveled the worlds in search of a new generation of humans to exact her revenge. She went so far as to liberate several peoples from an alien species’ domain and then exact her revenge on them. Apparently, things got out of control, and she ended up losing track of these humans. But luck put them back on her way, and thus, Matilda finally takes her revenge.